调节机体各种功能的两大信息传递系统是
幼儿时生长素分泌不足可导致
成年人甲状腺激素分泌不足可患哪种疾病
胰岛素缺乏时，对糖异生的作用是
激素传递的方式不包括
关于生长激素（gh）分泌的调节，正确的是
创伤、手术和麻醉时的应激是机体所产生的一种
严重创伤后，机体消耗的能量主要来源
甲亢患者手术麻醉处理，正确的措施是
对内分泌功能影响最大的麻醉方式是
机体内环境的稳态是指：
神经调节的基本方式是:
神经调节的特点是：
在自动控制系统中，从受控部分发出到达控制部分的信息称为：
人体对外环境变化产生适应性反应是依赖体内的调节机制而实现的。其中，神经调节的特点是：
关于体液调节，错误的说法是：
手术和麻醉时的应激原不包括
与麻醉的死亡率无关的是
围术期的应激反应在术后达高峰，可持续的时间是
全麻恢复期患者血压偏低最常见的原因是
产生生物电的跨膜离子移动属于
当达到k 平衡电位时
在一般生理情况下，每分解一分子atp，钠泵运转可使
在神经纤维，一次兴奋后的相对不应期时
大多数细胞产生静息电位的主要原因是
关于电压门控na 通道与k 通道的共同点中，错误的是
神经细胞一次兴奋后，阈值最低的时期是：
在全麻中最后丧失的是
意识的特征不包括
广泛的椎管内阻滞，会引起
口腔温度正常值是
新生儿产热的最重要的组织器官是
体温上升1℃，心率约增快
术中低温对机体的影响，正确的是
诱发恶性高热的最常见是
体温调节的基本中枢位于
某人处于寒冷环境中，不会出现的反应是
在体温调节中，起调定点作用的是
不属于自主性体温调节的是
当环境温度等于或超过体温时，机体的主要散热方式是
温度下降1°c时，氧耗量约下降
体温中枢的主要控制部位是
低温时心肌细胞对电解质离子的敏感性增加是
诱发恶性高热的最常见是
心室肌细胞有效不应期的长短主要取决于
房室延搁的生理意义是
颈动脉窦压力感受性反射
决定心排出量的两个主要因素
能使冠脉血流量增多的因素除 外
外周血管阻力升高可能是由于
使中心静脉压升高的因素包括
心室肌动作电位平台期的长短决定了
可使心肌氧耗增多的因素有
在体循环和肺循环中，基本相同的是
在一次心动周期中，左心室压力最高的是
影响心搏出量的因素，不包括
心室肌的后负荷是指
在无神经和体液因素影响下，窦房结自动兴奋的频率为
关于微动脉，错误的是
血流速度最慢的部位位于
影响正常人舒张压的主要因素是
心室易损期的叙述，正确的是
压力感受性反射的工作范围为
时间肺活量第一秒末的正常值是肺活量的
血液二氧化碳分压升高对呼吸的主要是通过
在生理状态下呼吸中枢的兴奋性依赖于
肺ⅱ型细胞合成的肺泡表面活性物质的重要作用是
肺功能余气量是
闭合气量大于潮气量时说明
低氧性肺血管收缩是指
全麻期间下列哪项不增加肺血管阻力
paco2增高时，氧离解曲线
关于co2排出综合征下列何者为错
影响肺部气体交换的因素有
二氧化碳对呼吸的调节是通过
关于用力呼吸，不正确的描述是
评价肺通气功能的指标较好的是
设某人的肺通气量为7500 ml/min，呼吸频率为20次/分，无效腔容量为125ml，每分心输出量为5000ml时，他的通气/血流比值应是
血液的氧离曲线左移发生在
血液中co2浓度对呼吸的调节主要是通过
导致静脉血po2降低的因素是
麻醉手术期间引起胸内压增加的重要原因是
co2气腹造成高碳酸血症，最主要的原因是
间歇正压通气（ippv）对机体正常生理功能产生影响，是因为
低氧性肺血管收缩（hpv）是指
肾小球滤过液与血浆的区别是
患者，男，56岁，因外伤拟行胫腓骨骨折内固定术。入室血压80/41mmhg，心率125次/分，呼吸25次/分。急查血气：ph 7.22 k 5.5mmol/l，be -12mmol/l。分析血钾升高的原因是
下列物中对肾功能无影响的药物是
关于围术期机械通气对肾功能的影响，说法错误的是
下列哪种情况对肾血流量产生明显变化
肾重吸收葡萄糖和氨基酸的部位在
同时影响肾小球滤过和肾小管重吸收的因素是
含氟吸入的肾毒性最大的是
围麻醉期低体温比较常见，下列关于低体温对肾功能的影响说法，错误的是
有关肾缺血时间对肾功能的影响，错误的是
在调节肝血流量的体液因素中有扩张肝动脉的是
术中牵拉胆囊发生胆心反射，会导致患者
可抑制小肠运动的激素是
参与脂肪消化的消化液主要包括
下列肝脏功能中,最重要的是
肝功能障碍的病人，全身初量要适当减少，其原因主要是
麻醉与手术期间影响肝功能的最主要因素是
肝功能障碍时易出血的主要原因是
肝动脉提供肝脏全部血液供应的
交感神经活动增强后
下列哪一药物引起肝血流下降最明显
麻醉对肝血流的影响，哪种说法不对
低蛋白血症，凝血功能障碍，γ-球蛋白增加
引起肝血流上升的药物为
任何有限数集都没有聚点
[a，b]q (其中q是有理数组成)的全体聚点的是[a，b]。
任意数集都有聚点。
对于任意实数a，b，开区间（a，b）中的任意数列都有收敛的子列。
下面的开区间集能够覆盖闭区间[0，1]的是( )。
在有限覆盖定理中把“开区间集h为闭区间[a,b]的覆盖”改为“开区间集h为开区间(a,b)的覆盖”，其结论仍成立
写出刻画实数完备性的等价定理
第一换元积分法又称“凑微分法”，下面结果错误的是( ).
下面的不定积分计算正确的是( ).
假设 在上有定义，下列结论正确的是
若在上可积，那么 在上也可积
若f在上可积 ，则无论常数a b c 取值如何，均成立
函数在[a b]上的平均值
如果函数f在[a，b]上不连续，则f在[a，b]上不存在原函数
对于任意的a>0，下列结果正确的是 ( )
下列结果不正确的是 ( )
有原函数的函数必可积
可积函数一定存在原函数
下列在[a,b]上函数一定不可积( )
下列叙述正确的是
下列叙述正确的是
下列叙述正确的是
下列说确的是
下列叙述正确的是
三角函数有理式的不定积分的一般变换（也称万能变换）是
简单无理式的不定积分化为有理函数的不定积分一般采用欧拉变换，下面( )不是欧拉变换.
下面结果正确的是( )
设函数f（x）具有连续的导数，则下面( )不正确
符号函数在在[-1,1]上不可积。
若在[a，b]上可导，则必有。
对于任意实数a，b，开区间（a，b）中的任意数列都有收敛的子列。
函数|f（x）|在[a，b]上可积等价于函数在[a，b]上可积。
（单选）which one of the following expressions could be used to mean "安慰某人"
（多选）which ones of the following expressions mean "a good friend"?
（多选）which of the following are the types of friendship mentioned in this unit?
(单选 )which of the following adjectives of personality does not mean (is not a synonym of) “angry”?
（多选）which of the following adjectives of personality does not mean (is not a synonym of) “confident”?
（多选）which of the following adjectives of personality does not mean (is not a synonym of) “shy”?
（单选）which of the following “mind-map branches” for the main topic "friendship" are in the correct order?
（单选）which of the following best describes "brainstorming" as discussed in this unit?
（单选）a “single parent family” is one where
(单选)what is the best way to describe a “nuclear family”?
（单选） an “extended family” is
（多选）which of the following are generally considered to be a ‘family type’?
（多选）which of the following terms are not usually associated with family types?
which of the following words are not synonyms of, or do not have a similar meaning to, “inspirational”:
which of the following words/expressions have a similar meaning to “bitter”?
（单选）which of the following is not an aspect of the ‘tabular approach’?
（多选）which of the following are note-taking methods described in this lesson?
(单选 ) which word not a synonym of “selfish” when describing children’s attitudes?
（单选）which set of words best fits the following sentence: “confuciani is the _________ that has _________ chinese _________ from several thousand years.”
(单选) filial piety is best described by which option?
which vowel letter may sound different in australian english?
(单选) which one of the following expressions means the same as chinese tunic suit?
（单选）which one of the following expressions means "卫衣"?
(单选) which one of the following expressions means "休闲裤"？
(单选) which one of the following clothing styles means "学院风，学生风"？
(单选) which one of the following expressions means "格子的"？
(多选) (单选) which ones of the following quantifiers(量词) could be used with clothes?
(多选) which ones of the following words and expressions are synonymous to "fashionable"?
（多选）which ones of the following are the english equivalents to the chinese expression "名牌"？
（单选）which one of the following means "平头"？
(单选) how to say "我想修一下头发"？
(多选) which ones of the following expressions could you use before paraphrasing others' meanings?
(单选) which of the following expressions is a name for toys of cartoon or tv characters?
which category of toys does "jigsaw puzzle" fall into?
（单选） which one of the following is "过山车"?
(多选) which ones of the following are traditional toys?
(单选) which one of the following is the expression for "跳房子"？
(单选) which one of the following is the expression for "拨绳子"？
(多选)which ones of the following are expressions for "拔河"
(多选) why do we need pauses in our speeches?
the number of video clips in unit 3:
confirm the information in the given sentences by means of paraphrasing. e.g. a: i'm by no means a modish person. b: yes, i see. you mean you are not really into fashion. (notice that the bolded words signal the intention to paraphrase."not really into fashion" is the paraphrase of "by no means modish") exercises: 1.a: i don't see the point of being stylish. b:________________________________________. 2.a: i'v scheduled a hair-cut. b:________________________________________. 3.a:i don't have enough money to burn on designer brands. b:________________________________________. 4.a: traditional clothes like cheongsam and mao suit show people's culture identity. b:________________________________________. 5.a: fashion is a multi-billion dollar industry. b:________________________________________. 6.a: i'm into computer games but i'm not a game freak. b:________________________________________. 7.a: all work and no play makes jack a dull boy. b:________________________________________. 8.a: the cartoon movie serial "toy story" is fantabulous. b:________________________________________. 9 a: if you are hooked on(上瘾) the game, it does you no good. b:________________________________________. 10.a:i think people who play games all day just idle away their time (浪费时间). b:________________________________________.
(单选) which one of the following is the english equivalent for “无形文化遗产”？
(多选) which ones of the following are forms of fine art?
(多选) which ones of the following should you pay attention to when going to a symphony?
(多选) which ones of the following are english equivalents to “皮影戏”？
(多选) which ones of the following are traditional stage-art forms in china?
(多选) when making an introduction of something, why is it important to focus on the main features?
（多选）which ones of the following are major ways to support a point?
(单选) which one of these architectures is usually used for display and could be dientaled once it is no longer needed?
（多选）which ones of the following are ancient style architectures?
（多选）which ones of these are names of western architectural styles?
(多选) which ones of these are features of baroque architectures?
（多选）which ones of the following words refer to high-rise architectures?
（单选）which of the following is not a real famous celebrity?
（单选）which of the following words do not mean talented?
（单选）which of the following words do not mean outrageous?
（多选）which of the following are not true about lady gaga?
（多选）which of the following celebrity/career combinations are correct?
（多选）which of the following are not true about david beckham?
（多选）which of the following are important points for linking‘ideas’?
（单选）what is the main reason that bill gates and his wife were considered to be professional role models?
（单选）which of the following terms best explain expressions such as:‘beatlemania’or‘lisztomania’?
（多选）which of the following phrases are negatively associated with celebrities?
(单选) which one of the following expressions means "一审"？
（单选）which one of these behaviours, in serious cases, could elicit a legal punishment?
(多选) which ones of the following are crimes of stealing?
(多选) which ones of the following expressions mean ""
(多选) which ones of the following are crimes against children?
(单选) what is a person who attacks someone violently in a street in order to steal money from them.
(多选) which ones of the following mean "律师"？
(多选) which ones of these are important details when a crime case is reported to the police?
(多选) which ones of the following expressions signal "the next step"?
which of the following prefix means half?
which of the following prefix means difficult or painful?
which of the following suffix means record or picture?
which of the following suffix means excision?
which of the following means surgical repair of the esophagus?
which of the following means rupture of the liver?
which of the following means the layer above the dermis?
which of the following means inflammation of the kidney?
which of the following suffix means instrument for viewing the stomach?
which of the following means heart pain?
the chin is below the nose so the chin is __________to the nose
the knee is near to the body trunk compared with feet, so the knee is ___________ to feet.
the nose is in front of ears so the nose is _________to ears.
the skin is the covering of body while bone is buried inside so the skin is _______to bone
___________means “bottom or lower part of an organ.”
__________means “the body lying horizontally and facing downward.”
which of the following means fat cell_________
which of the following means study of tissue____________
which of the following means above stomach____________
what does postnasal mean?
which of the following means within the skin?
which of the following means skin disease?
which of the following means abnormal condition of excessive sweat?
which of the following means black tumor?
which of the following means softening of nails?
collagen fibers are the major components of the ____.
special cells, ____, in the epidermis produce the black pigment that gives color to the skin and protects against damage from the ultraviolet rays of the sun.
adipose tissue mainly exists in ______.
which of the following is not the accessory structure of the skin?
___ protrudes into the hair bulb and provides nutrients for the growing hair.
which of the following valve guards the atrioventricular orifice between the right atrium and the right ventricle?
which of the heart chamber receives blood returning from the pulmonary veins?
which of the following statement is not true?
________ are allest blood vessels, which provide sites of exchange of substances between the blood and the body cells
which of the following is the innermost layer of the heart wall?
which of the following means heart muscle disease?
which of the following means hardening of the vessel?
which of the following means suturing of an artery?
which of the following means process of recording a vein?
which of the following means inflammation of a valve?
which of the following means inflammation of vertebrae?
which of the following means disease of tendon and muscle?
which of the following means surgical repair of bone?
which of the following means bone and cartilage tumor?
which of the following means incision into the joint?
which of the following is not the facial bone?
which of the following is not the bone in the axial skeleton?
which of the following is not in upper extremities.
pectoral girdle includes two bones clavicle and ___________
which bone is on the little finger side of the forearm?
which of the following means nose inflammation?
1. which of the following means paralysis of the voice box?
which of the following means insufficient oxygen in the blood?
which of the following means abnormal condition of nose fungus?
which of the following means normal breathing?
____ in the nasal cavity can increase the air turbulence.
____ serve(s) as a food and air passageway.
____ is the location of the vocal cords.
____ covers the larynx and trachea during swallowing, which provides protection against food and liquid being inhaled into the lungs.
each bronchiole terminates in a all group of air sacs, called ___.
the roof of the mouth is known as the ________.
the crown of the tooth is covered by a layer of ____, the hardest substance in the body.
the ileum connects to the colon through a sphincter called the ____ valve.
which of the following teeth do not belong to cutting teeth?
when the bile leaves the liver through left and right hepatic duct, it enters ______.
which of the following means the study of the mouth?
which of the following means the inflammation of the tongue?
which of the following means suturing the lip?
which of the following means condition of common bile duct stone?
which of the following means abnormal appetite?
which of following means rapid bleeding from bladder?
which of following means excision of a kidney?
which of following means kidney disease?
which of following means x-ray record of the renal pelvis?
which of following means frequent nighttime urination?
renal _____is the place, where the renal artery carries the blood into the kidney and the renal vein carries the blood out of the kidney.
the renal ___ is the blood-filtering portion of the nephron.
the filtering unit of the nephron, which is composed of a tangled cluster of blood capillaries is _____.
which of the following is not the stage of urine formation?
the male urethra is not only the outlet for urine but also the passageway for ___.
which of following means excision of the uterus?
which of following means milk discharge?
which of following means surgical repair of breast?
which of following means no menstrual flow?
which of following means blood in fallopian tube?
which layer of the uterus contracts to expel the baby from the mother’s body?
___ of the uterus communicates with vagina and the cavity of the uterine body.
what structure in the uterine tubes has the function of providing site for the fertilization?
below the center of the breast there is a ring of pigmented skin, called ___.
___ can store milk during nursing.
which of the following means headache?
poliomyelitis possibly means?
the word radiculoneurocele possibly means?
which of the following means recording the ultrasonic echoes of the brain?
encephalosclerosis possibly means?
the ___ lobe of the cerebrum controls visual information.
the ___ lobe of the cerebrum receives and interprets nerve impulses from sensory receptors and interprets language.
which part of brain is located beneath the posterior part of the cerebrum and maintain the balance and equilibrium
____________receive information from another cell and tranit the message to the cell body
____________carry messages from sensory receptors to the cns, central nervous system
which of the following shows the study of female?
which of the following means yellow skin?
which of the following means abnormal condition of hair fungus?
which of the following means excision of wrinkles?
which of the following means abnormal condition of porous bones?
which of the following means tendon pain?
which of the following means difficult movement?
what is the general medical term for hardening of the arteries?
which of the following means inflammation of all the sinuses?
which of the following refers to the instrument to measure the breathing?
which of the following terms means toward the side with respect to the imaginary midline?
this oily substance, ____, lubricates the skin surface.
which of the following is not facial bone?
the basal layer also contains special cells called_______, which produce black pigment that gives color to the skin.
which of the following terms means lying horizontally with face upward?
which of the following valve guards the atrioventricular orifice between the left atrium and the left ventricle?
which of the following statement is not true?
which bone is located on the upper sides of cranium and roof of skull.
which of the following is commonly referred to as adam’s apple.
the name for muscle tissue found in the walls of hollow or tube-shaped organs is_____.
which of the following means difficult digestion?
which of the following terms means dilated ureter?
which of the following terms means rapid blood flow from uterus?
which of the following terms means excision of the testes?
which of the following terms means inflammation of the gray matter of spinal cord?
the ______ sphincter opens and closes to control the passage of food into the all intestine.
27. _____ is the final stage of urine production occurring when the special cells of the renal tubules secrete ammonia, uric acid, and other waste substances directly into the renal tubule.
the distal end of each uterine tube expands as it curves around the ovary, forming the _______, where fertilization usually occurs.
______ is the innermost membrane layer of meninges and is applied directly to the surface of the brain.
each nephron is composed of a filtering unit consisting of a tangled cluster of blood capillaries called a glomerulus and a surrounding thin-walled saclike structure called a glomerular or________.
the epithelial tissue can provide support and protection to the body.
the deepest layer in the dermis is called basal layer.
bat-shaped bone that forms part of the base of the skull, floor, and sides of eye orbit is sphenoid bone.
pulmonary valve is a semilunar valve.
arteries carry blood back to the heart.
uvula can help the production of speech.
an afferent arteriole carries blood into the glomerulus.
cervical mucus can block the spread of bacteria from the vagina into the uterus.
inside the mammary glands, there are lobules, which contain lactiferous ducts that produce milk.
parietal lobe of the cerebrum can control motor function, personality, and speech.
the________ is the white half-moon shaped part at the nail base.
the vertebral or spinal column can be ided into five sections: cervical vertebrae, thoracic vertebrae, __________ vertebrae, sacrum and coccyx.
the wall of the heart is composed of three distinct layers: an outer epicardium, a middle_________, and an inner endocardium.
the maximum pressure achieved during ventricular contraction is called the ________ pressure.
in lungs, each bronchiole terminates in a all group of air sacs, called _______.
the _____ of the all intestine extends from the pyloric sphincter to the jejunum.
saliva contains the digestive enzyme, _____, which begins the digestion of carbohydrates.
each renal pyramid opens into a _____ ,which is continuous with the renal pelvis.
the organ of the female reproductive system, _____, functions to receive, retain, and nourish a fertilized ovum.
nervous tissue consists of two basic types of cells: _____ and neuroglial cells.
将二进制数(101101.11)b转换成十进制数是
将二进制数(1010 0110 1100)b转换成十六进制数是
将二进制数(101.101)b转换成八进制数是
将十六进制数(36.d)h转换成十进制数是
十进制数8的5421bcd码表示为 。
将十六进制数(4e.c)h转换成二进制数是 。
十进制数5的2421bcd码为？
十进制数16的8421bcd码和余3bcd码分别是？
二进制代码中8421bcd码、格雷码等都是有权码，而余3码、余3循环码等都是无权码。对吗？
当关注各信号之间的逻辑关系而不用考虑数字电路的翻转特性时，可将数字波形画成理想的波形。
将十进制数转换为二进制数，整数部分和小数部分需要分开进行。整数部分的转换方法是连续除以2直到商为0，每一步的余数作为二进制数的一位数字，最先获得的余数是二进制数的最低位，最后获得的是其最高位； 小数部分的转换方法是连续乘以2直到满足误差要求，每一步取乘积的整数部分作为二进制数的一位数字，同样地，最先获得的整数部分是二进制数的最低位，最后获得的是其最高位。此说法对吗？
将一个八进制数写成（803.64），对吗？
以下表达式中符合逻辑运算法则的是 。
逻辑表达式a bc = 。
的反函数是
函数的对偶式为 。
函数l= ab b bcd= 。
最小项的逻辑相邻项为 。
标准与或式是由 构成的逻辑表达式。
当时，同一逻辑函数的两个最小项＝ 。
设，为函数f 的两个最大项，= 。
四个逻辑相邻的最小项合并，可以消去_________个因子；
4变量逻辑函数的卡诺图中，有_________个方格与对应的方格相邻
函数,,的卡诺图表示如下， 他们之间的逻辑关系是_________。
若逻辑函数则f和g相与的结果为_________
若逻辑函数则f和g相或的结果为_________。
逻辑函数的结果为 .
求一个逻辑函数l的对偶式时，下列说法不正确的是 .
将逻辑函数展开为最小项的标准形式，总共有_______个最小项。
如果规定只能使用非门或者2输入与非门来实现l=ab ac，则正确的逻辑图是 .
如果规定只能使用非门和2输入与非门来实现,则正确的逻辑图是 .
已知函数l(a，b，c，d)的卡诺图如图所示，则函数l的最简与-或表达式为 。
已知函数l(a，b，c，d)的卡诺图如图所示，则函数l的最简与-或表达式为 。
已知函数l(a，b，c，d)的卡诺图如图所示，则函数l的最简与-或表达式为 。
下列等式成立的是 。
已知a b = a c，则b = c。对吗？
已知ab =ac，则b = c。对吗？
n 个变量的最小项是包含全部n 个变量的乘积项，在乘积项中每个变量只能以原变量的形式出现一次.对吗？
用卡诺图化简一个逻辑函数，得到的最简与或式可能不是唯一的。对吗？
。对吗？
电路如图所示，输出端l的表达式为 。
由开关组成的逻辑电路如图所示，设开关a、b 分别有如图所示为0”和“1”两个状态，则电灯f 亮的逻辑式为 。
分析下图所示电路，输出函数f的表达式为 。
下图中，a、b为某逻辑电路的输入波形，y为输出波形，则该逻辑电路为 。
已知二变量输入逻辑门的输入a、b和输出f的波形如图所示，则该逻辑电路为 。
一个十六路数据选择器，其地址输入（选择控制端输入）端有_______个。
一个译码器若有100个译码输出端，则译码器地址输入端至少有_______个。
下列电路中，属于组合逻辑电路的是__________。
用四选一数据选择器实现函数，应使 。
组合逻辑电路中的竞争冒险是由______引起的。
如图所示电路中，y(a,b,c)的最小项表达式是（ ）
一位8421 bcd码译码器的数据输入线与译码输出线的组合是 。
设计一个对1000个符号进行二进制编码，则至少要 位二进制数码。
设计一个裁判表决电路。裁判组由三个人组成：主裁判a、副裁判b和c。在判定一次比赛的结果时必须按照如下原则：只有当两个或两个以上裁判支持，并且其中有一个为主裁判时，比赛结果的裁决才有效。令a、b、c为1表示支持，为0表示反对。裁决y为1表示有效，为0表示无效。下列表达式中能够实现该电路功能的是 。
当七段显示译码器的七个输出端状态为abcdefg=0011111时（高电平有效），译码器输入状态（8421bcd码）应为____________。
下列表达式中不存在竞争冒险的有 。
函数 ，当变量的取值为 。将不出现冒险现象。
设计一个4输入的二进制码奇校验电路，需要 个异或门。
用3-8线译码器74hc138可以构成6-64线译码器，需要 片74hc138。
为了使74hc138正常工作，使能输入端、 和 的电平应是 。
多路数据分配器可以直接由 来实现。
用两片4位比较器74hc85串联接成8位数值比较器时，低位片中的、、所接的电平应为 。
如图所示电路中，y 的最小项表达式是
逻辑函数l 的卡诺图如图所示，以下关于l 的最简与或表达式正确的是 .
逻辑函数l 的卡诺图如图所示，以下关于l 的最简与或表达式正确的是 .
逻辑函数l 的卡诺图如图所示，以下关于l 的最简或与表达式正确的是 .
逻辑函数l 的卡诺图如图所示，以下关于l 的最简与或表达式正确的是 .
下图是能够对两个一位二进制数的大小进行比较的电路，下述说确的是 .
实现两个一位二进制数相加的电路叫全加器。对吗？
实现两个一位二进制数和来自低位的进位相加的电路叫全加器。对吗？
组合逻辑电路通常由逻辑门和触发器组合而成。对吗？
普通编码器的2个或2个以上的输入同时为有效信号时，输出将出现错误编码。对吗？
当2个或2个以上的输入同时为有效信号时，优先编码器将只对优先级别高的输入进行编码。对吗？
串行进位加法器的缺点是运算速度慢，优点是电路结构简单。超前进位加法器的优点是运算速度快，缺点是电路结构复杂。对吗？
当一个逻辑门的两个输入端的信号同时向相反方向变化，而变化的时间有差异的现象，称为竞争。由竞争而可能产生输出干扰毛刺的现象称为冒险。对吗？
常用的消除组合逻辑电路中竞争冒险的方法有三种：发现并消除可能出现的互补变量运算、增加选通控制信号和使用滤波电路。对吗？
二进制译码器的作用是将输入的代码译成特定的信号输出。对吗？
如下图所示电路构成的锁存器，以下哪组r,s输入信号将导致相应信号撤销后，电路进入不确定状态
指出下图所示电路构成的锁存器为哪种类型的锁存器？
下图是d锁存器定时图，在中，表示输入信号d建立时间的是 ，表示输入信号d保持时间的是 。
以下关于锁存器和触发器描述正确的是
试指出下图所示电路对cp信号的敏感类型
已知某触发器的电路结构如下图所示，请指出该触发器属于以下哪种类型的触发器
下图是d触发器的定时图，表示输入信号d建立时间的是 ，表示输入信号d保持时间的是 。
如图所示维持阻塞d触发器电路图中，红色字体标注的反馈线中哪条线为置1维持线。
当输入端s和r为 ，由或非门构成的基本sr锁存器会出现不稳定状态。
当输入端s和r为 ，由或非门构成的基本sr锁存器保持原状态不变。
用或非门构成的基本sr锁存器，其特性方程中，约束条件为sr=0。这说明两个输入信号 。
当输入端和为 ，由与非门构成的基本sr锁存器会出现不稳定状态。
对于门控d锁存器来说，在 条件下，输出端q总是等于输入的数据d
触发器有 个稳定状态，它可以存储1位二进制码，存储8位二进制信息需要 个触发器
触发器被清零（复位）后，q和端的状态分别为 和 。
触发器的输出逻辑电平从1到0或从0到1的转换称为
触发器cp 输入端的三角形符号指的是
下降沿触发的边沿jk 触发器在cp 下降沿到来之前j=1、k=0，而cp下降沿到来之后变为j=0、k=1，则触发器的状态为
假定锁存器的初始状态为0。对于下图所示的电路和输入波形，输出端q 的波形图为 。
假设电路的初始状态为q= 1，对于下图所示的电路和输入波形，输出端q和的波形图为 。
在下图中，假设触发器的初态均为0，则q的波形图为 。
在下图中，假设触发器的初态为0，则q的波形图为 。
用cmos电路74hct02或非门构成消除机械开关抖动影响的电路及开关s由位置a到b时波形如图所示，试确定q端的波形为 。
在下图中，假设所有触发器的初态均为0，则在时钟脉冲cp的作用下，q1、q0的波形图为 。
下图是d 锁存器定时图，下列说确的是 。
由d触发器构成jk触发器的电路是 .
在下图所示电路中，能完成t 触发器逻辑功能的电路有 .
在图示电路中，能完成的逻辑功能的电路有 .
在图示电路中，能完成 的逻辑功能的电路有 .
jk触发器在jk输入信号的作用下可以工作在4个状态——置1，置0，保持和翻转。
jk触发器当jk都为1时，下一个状态维持与现态一致。
t触发器的下一状态与t输入信号保持一致。
sr触发器输入信号的约束条件为s r=0。
触发器的状态通常指输出端的状态。
由或非门构成的基本sr锁存器在s=1、r=0时，将使锁存器进入置位状态。
由与非门构成的基本sr锁存器在=1、=0时，将使锁存器进入置位状态。
下图所示d锁存器，只有当使能端e=1时，输入端d的值才会影响到q的状态
jk触发器有使输出不确定的输入条件。
边沿jk触发器在输入j=k=1时，如果cp信号的频率为32 khz，则q端输出脉冲的频率为16 khz。
对于有异步置位端的d 触发器，当异步置位信号无效时，在cp 信号的作用下，才能响应d 端的输入。
触发器的传输延迟时间说明了输出端q对于cp有效跳变沿响应时所需的时间。
所有触发器的建立时间都不为零。
触发器的保持时间是指在有效电平转换之前，数据必须保持不变的时间间隔。
锁存器和触发器都属于双稳态电路，它们存在两个稳定状态，从而可存储、记忆1位二进制数据。对吗？
虽然传输门控d锁存器和逻辑门控 d锁存器的电路结构不同，但逻辑功能是完全相同的。对吗？
下图两个非门构成的电路就是一个最基本的的双稳态电路。在接通电源后，它可能随机地进入0状态或1状态，且能长期保持这一位二进制数据不变。但因为没有控制机构，所以无法在工作时改变和控制它的状态，从而不能作为存储电路使用。对吗？
触发器的电路结构与逻辑功能没有必然联系。同一种逻辑功能的触发器可以用不同的电路结构来实现；同一种电路结构的触发器可以实现不同的逻辑功能。对吗？
如果在时钟脉冲cp =1期间，由于干扰的原因，使触发器的数据输入信号经常有变化，此时不能选用ttl主从型结构的触发器，而应该选用边沿型或维持阻塞结构的触发器。对吗？
一个8421 bcd码计数器至少需要 个触发器。
五个d 触发器构成基本环形计数器，其有效循环状态数为 。
三个d 触发器构成模8的同步二进制加法计数器的初态为，经2016个时钟后，计数器状态为 。
有一同步时序电路，由三个上升沿触发的d 触发器构成，其控制输入，，，则该电路可产生循环长度为7 的序列，设起始状态，由输出，则此序列为 。
如图所示，异步计数器进入稳定状态之后，计数器能出现的最大数为 。
某时序电路的状态转换图如图所示，若输入序列x = 110101（从最左边的位依次输入）时，设起始状态为，则输出序列为 。
某时序电路的状态图如图所示，该电路至少需要 个控制输入端。
已知一个序列101检测器，若该检测器的输入序列和输出序列如下： 输入a：0 1 0 1 0 1 1 0 1 0 输出z：0 0 0 1 0 0 0 0 1 0 则以下两个状态图中， 是该检测器的状态图。（初始状态为）
用 n个触发器构成计数器，可得到的最大计数容量（即计数模）为 。
如图所示的数字逻辑部件。其中各方框中均是用模n 的计数器作n 次分频器，则a处的频率是400 khz，b处的频率是40 khz，c处的频率是 。
一个四位二进制减法计数器的起始值为1001，经过100个时钟脉冲作用之后的值为 。
某时序电路的输入为x，输出为z，状态按排序，其状态转换真值表如下所示，则该电路的逻辑功能是 。
有一双向移位寄存器，高位在左，低位在右，欲将存放在该移位寄存器中的二进制数乘上十进制数，则需将该移位寄存器中的数左移 位。
有，两个状态，条件 可确定和不等价。
如图所示同步时序电路的初始状态为00，以下三个选项中分别是、和输出z 对应于 的波形图，其中 不正确。
同步时序电路中触发器的数目为n，状态数为m，则两者的关系为 。
某同步时序电路的状态图如下图所示，用d 触发器设计时的最简激励方程组为 ,电路能否自启动 。
状态图如图所示，电路的输入为a，输出为y，试用两个上升沿触发的jk 触发器设计该电路，要求电路使用的门电路最少。则各个触发器的激励方程及输出方程为 。
一个模6计数器，其状态转换关系如下图，用t触发器设计时的最简激励方程组为 ,电路能否自启动 。
时序电路如图所示，分析电路确定电路的有效循环状态数为 ，能否自启动 。
时序电路如图所示，分析电路确定电路的有效循环状态数为 ，能否自启动 。
状态图如图所示，电路的输入为a，输出为y，试用下降沿触发的d触发器设计该电路，则各个触发器的激励方程及输出方程为 。
已知可以重叠检测101序列检测器的输入序列、输出序列如下，其状态图为 。 输入a： 0 1 0 1 0 1 1 0 1 输出z： 0 0 0 1 0 1 0 0 1
已知不可以重叠检测101序列检测器的输入序列、输出序列如下，其状态图为 。 输入a： 0 1 0 1 0 1 1 0 1 0 输出z： 0 0 0 1 0 0 0 0 1 0
用触发器实现下图所示输出波形， 每一个和的周期内，可以等分为 段时间间隔相等的状态，需要电路有 种状态来实现。
在某计数器的输出端观察到如图所示的波形，该计数器的模为 。
电路如图所示，假设初始状态=000。由ff1和ff0构成的电路是 进制计数器。这个电路为 进制计数器。
某时序电路的状态图 如图所示，设电路的初始状态为00，当序列a=110010自左至右输入时，该电路输出z的序列为 。
已知时序电路的状态表如下表所示。如果电路的初始状态为a，输入信号a依次是1 0 1 0 1 1 1，试确定电路经历的状态 ，及输出序列 。
分析下图所示电路，判断启动信号过后，电路输出的状态依次为 。
电路如图所示。输入依次为 ，则电路构成模7计数器。
电路如图所示。输入依次为 ，则电路构成模174计数器。
由三个触发器构成的移位寄存器状态转换图如图所示，现要设计一个模3的移位型计数器，状态分配可能是 。
电路如图所示，经cp 脉冲作用后，欲使，则a、b输入应为 。
图示电路 。
任何一个同步时序逻辑电路的结构和功能可以用下面的函数表达式完整地描述 。
下图所示电路是 。
描述同步时序电路的方程组有激励方程组、转换方程组和输出方程组，而描述异步时序电路的方程组除了以上三类之外，还多了一类时钟信号方程组，不过异步时序电路的这三类方程组与同步时序电路的这三类方程组相同。这个说确吗？
用d 锁存器不能构成移位寄存器，这个说确吗？
同步计数器和异步计数器比较，同步计数器的显著优点是工作速度快。这个说确吗？
在图(a)所示电路中，cp脉冲的频率为2khz，则输出端q的频率为4khz；图(b)所示电路中，cp脉冲的频率为4khz，则输出端q的频率为4khz。对吗？
某电视机水平 – 垂直扫描发生器需要一个分频器将31500hz的脉冲转换为60hz的脉冲，构成此分频器至少需要9个触发器。对吗？
根据最简二进制状态表确定输出函数表达式时，与所选触发器的类型无关。
时序电路的根本特征是它任意时刻的输出不仅取决于当时的输入，而且还取决于电路原来的状态。因此，除了时钟cp 外，没有输入变量的电路不是时序电路。
已知状态表如下表所示，输入为，其状态图为 。
试分析下图所示同步时序电路，其正确的状态图是 。
试分析下图所示同步时序电路，其状态图是 。
试分析下图所示同步时序电路，其状态图是 。
已知一个序列1101检测器，若该检测器的输入序列和输出序列如下： 输入a：0 1 1 0 1 1 0 1 1 0 输出y：0 0 0 0 1 0 0 1 0 0 则以下两个状态图中， 是该检测器的状态图。（初始状态为s0）
已知一个序列1101检测器，若该检测器的输入序列和输出序列如下： 输入a：0 1 1 0 1 1 0 1 1 0 输出y：0 0 0 0 1 0 0 0 0 0 则以下两个状态图中， 是该检测器的状态图。（初始状态为）
1.试述构件和零件的区别与联系
计算图示机构的自由度
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