【单选题】
大气的运动变化是由什么引起的。___
A. 冷热不均
B. 水汽交换
C. 地壳运动
D. 万有引力
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相关试题
【单选题】
(1)Whieh of the following descriptions about the characteristics of physiology is wrong？___
A. It is the study of how living organisms work.
B. It illustrates the discipline of the development and the evolution of disease and the essence of disease.
C. It is to study the living phenomena and the function activities of living organs.
D. It is to explain how they are regulated and integrated.
【单选题】
(2) Which of the following are specialized in producing force and movement?___
A. muscle cells
B. connective tissues
C. nerve cells
D. epithelial cells
【单选题】
(3)The fluid environment surrounding each cell is called the___
A. intracellular fluid
B. intracellular fluid
C. internal environment
D. external environment
【单选题】
(4) Which of the following is not the fundamental characteristic of living organisms?___
A. metabolism
B. adaption
C. reproduction
D. passive diffusion
【单选题】
(5)Whicl of the following is a physiological process with negative feedback?___
A. blood coagulation
B. process of passing urine
C. sino-aortic baroreceptor reflex
D. process of parturition
【单选题】
(6)Which of the following is not the characteristic of regulation by hormone?___
A. diffusenin nature
B. longer in duration
C. accurate in action
D. action in overcorrection
【单选题】
7)Which of the following is not the characteristic of cells?___
A. They are bound by the plasma membrane
B. They have the ability to break down large molecules to smaller ones to Liberate energy for their activities
C. They possess a nucleus which contains genetic information in the form of deoxyribonucleicacid(DNA).
D. Living cells can not transform materials.
【单选题】
8)The breakdown of large molecules to smaller ones is called___
A. respiration
B. anabolism
C. catabolism
D. absorption
【单选题】
9) Which of the following descriptions about the characteristics of nervous regulation is wrong?___
A. It responds fast
B. It acts exactly
C. It responds slowly.D.
D. uration is short
【单选题】
10)Which of the following descriptions about the control of body function is wrong?___
A. Homeostasis is kept by feedback control.
B. Negative feedback minimizes the changes, leading to stability.
C. Positive feedback is not useful.
D. Feed-forward makes human body foresee and adapt itself to the environment promptly.
【单选题】
(1)Which of the following parts of knowledge of drugs should be included in pharmacology?___
A. The effects of drugs on man
B. The correlation of biological activity with chemical structure
C. The history, source, physical and chemical properties, compounding, biochemical and physiologicaleffects, mechanisms of action, absorption, distrilbution, biotransformation and excretion.
D. The prevention, recognition, and treatment of drug poisonings
【单选题】
(2)Which of the following is what a clinician is primarily interested in according to the text?___
A. Drugs which can be reasonably limited to those aspects that provide the basis for their rational clinical use
B. Chemical agents that are not used in therapy but are commonly responsible for household and industrial poisoning as well as environmental pollution
C. Drugs which are useful in the prevention,diagnosis and treatment of human disease,or in the prevention of pregnancy.
D. rugs which are useful in the prevention, diagnosis and treatment of human disease, or in the prevention of pregnancy.
【单选题】
(3)Why was the physician not interested in pharmacognosy?___
A. He didn't have to select the proper plants for his prescription
B. He had a broad botanical knowledge
C. Fewer drugs were obtained from natural sources
D. Natural drugs had little difference with synthetic ones
【单选题】
(4)Which of the following is the best way of studying pharmacology for medical students and practitioners?___
A. to have a broad botanical knowledge
B. to select a plant and its preparation
C. to have the ability to purify natural plants
D. to have curiosity that stimulates them to learn about sources of drugs
【单选题】
(5)What are the tasks related to medicines almost complete!y delegated to the pharmacists now?___
A. the physical and chemical properties of medicines
B. the preparing, compounding, and dispensing of medicines
C. dosage forms of medicines available
D. the therapeutic and other uses of medicines
【单选题】
(6) What is a main unique aspect of pharmacodynamics?___
A. Pharmacodynamics is an experimental medical science
B. Pharmacodynamics is focused on the characteristics of drugs
C. Pharmacodynamics borrows freely from both the subject matter and the experimenta techniques of physiology, biochemistry, microbiology, genetics and pathology
D. Pharmacodynamics correlates the entire field of preclinical medicine
【单选题】
7) What time of history does pharmacodynamics date back to?___
A. the second half of the seventeenth century
B. the second half of the eighteenth century
C. the second half of the nineteenth century
D. the second half of the twentieth century
【单选题】
8)What does the research on pharmacodynamics focus on?___
A. study of clinical effect of drugs
B. study of the process of drugs in the body
C. study of the effect and the mechanism of drugs on the body
D. study of the correlation of the actions and effects of drugs with their chemical structure
【单选题】
(9)Which of the following is true when drugs are selected?___
A. It has to be based in part on legal reasons.
B. It has to be based in part on ethical reasons.
C. It has to be based in part on the pharmacological evaluation in man
D. It has to be based in part on the pharmacological evaluation in animals
【单选题】
(10)Why are chemotherapeutic agents useful in therapy?___
A. They stimulate or depress biochemical or physiological function in man in a sufficiently reproducible manner to provide relief of symptoms or, ideally, to alter favorably the course of disease
B. They can produce desired effects with only tolerable undesired effects
C. They have only minimal effects on man but can destroy or eliminate parasites
D. The selectivity of their effects is one of their most important characteristics
【单选题】
1)H. Mario Geysen initially used parallel synthesis as a quick way to identify which small_____ of any given large protein bound to an antibody.___
A. division
B. pieces
C. part
D. fragment
【单选题】
2)Chemists often start a combinatorial synthesis by attaching the first set of building blocks_____ to microscopic beads made of polystyrene.___
A. solid
B. inert
C. soft
D. active
【单选题】
3）The chemical reactions required to link compounds to the beads and later to detach them____ to the synthesis proces.___
A. induce complications
B. make easy
C. introduce complications
D. introduce easy
【单选题】
4)In a parallel synthesis, all the products are_____ separately in their own reaction vessels.___
A. combined
B. assembled
C. joined
D. assorted
【单选题】
(5)In many laboratories today, robots assist with the routine work of parallel synthesis, such as small___ amounts of reactive molecules into the appropriate wells.___
A. sending
B. transporting
C. delivering
D. giving
【单选题】
(6)Scientists can pull out from the mixture the beads that bear biologically active molecules and then,using sensitive detection techniques,___ the molecular makeup of the compound attached.___
A. determine
B. make sure
C. find
D. search
【单选题】
(7)Most pharmaceutical companies today continue to___ parallel synthesis. Which of the following is not appropriate to be filled in the blank?___
A. count in
B. count on
C. depend on
D. rely on
【单选题】
(8)Once they identify a promising substance, they___ make many one-at-a-time modifications to the structure.___
A. laboriously
B. hardly
C. easy
D. effectively
推荐试题
【单选题】
340.(A320)以下哪句话是不正确的：___
A. A.引气隔离valve上装有两个马达，一个是用于BMC的自动控制模式，一个是用于人工选择电门控制模式
B. B.引气隔离valve只有开和关两个位置
C. C.当没有电源提供到飞机上时，引气隔离valve将会被弹簧加载到关闭位
D. D.引气隔离valve可以被人工超控
【单选题】
341.(A320)以下哪句话是正确的：___
A. A.驾驶舱里的发动机引气控制电门的开关控制信号是直接给到HPV和PRV上，让他们关断的。
B. B.人工或者BMC通过直接控制TLT从而控制PRV的关闭，且当PRV关闭后，HPV也肯定关闭
C. C.HPV关闭后，PRV也肯定关闭
D. D.HPV的关断控制和PRV的关断是没有任何关系的
【单选题】
342.(A320)以下哪句话是正确的：___
A. A.当超温和超压保护性关断发动机引气时，是由BMC直接给信号给PRV和HPV，使得发动机引气关断
B. B.当人工关断发动机引气时，是由发动机引气控制电门直接给信号给PRV和HPV，使得发动机引气关断
C. C.当TLT控制PRV关断时，HPV也将同时关断
D. D.当TLT控制PRV关断时，HPV不随着PRV的关断而关断
【单选题】
343.(A320)以下哪句话是正确的：___
A. A.地面气源是直接接到左气源系统上
B. B.地面气源是直接接到右气源系统上
C. C.地面气源如果要接到右气源系统必须要将引气隔离valve接通
D. D.A和C
【单选题】
345.(A320)以下哪种情况存在时，APU引气将接不通___
A. A.当左发引气管路有渗漏的情况下
B. B.当APU的转速小于95％时
C. C.当APU系统存在引气关断的故障条件时
D. D.以上都对
【单选题】
346.(A320)以下哪种说法是不正确的：___
A. A.大翼前缘通气系统的冲压空气进气口是安装在1＃和2＃襟翼滑轨之间
B. B.大翼前缘通气系统中和冲压进气口相连的piccolo管路是安装在大翼和吊架之间的引气管路的上方
C. C.大翼前缘通气系统是受BMC的监控和控制的
D. D.在飞行过程中，空气是通过冲压进气口进入到piccolo管路，从而再分配到大翼前缘的
【单选题】
347.(A320)以下哪种说法是不正确的：___
A. A.当气源系统有故障时，必须人工选择ECAM控制面板上的BLEED才能在下ECAM显示器上看到引气系统页面
B. B.当气源系统有故障时，引气系统页面会自动地在下ECAM页面显示出来
C. C.出现在下ECAM页面上的引气系统页面能显示valve的位置，引气的温度和压力等参数
D. D.引气系统的压力不仅仅只出现在引气系统的页面上
【单选题】
348.(A320)以下哪种说法是正确的：___
A. A.OPV是一种气控气动的valve
B. B.OPV是电控气动的valve
C. C.OPV不能在驾驶舱被人工控制
D. D.A和C
【单选题】
349.(A320)以下哪种说法是正确的：___
A. A.BMC参与调节引气的压力与温度
B. B.两个BMC是完全独立的，互相之间是没有交联的
C. C.BMC可以关断发动机引气系统
D. D.BMC安装在主电子舱内
【单选题】
350.(A320)以下哪种说法是正确的：___
A. A.只要APU引气，两台发动机的引气就接不通
B. B.当APU引气时，如果引气隔离valve是关断的，那么只有左发引气接不通；如果引气隔离valve是打开的，那么两台发动机引气都接不通
C. C.只要发动机引气，APU引气就就接不通
D. D.当右发引气时，如果引气隔离valve是关断的，APU引气就能接通；而当引气隔离valve是打开时，无论哪一台发动机引气，那么APU引气都接不通
【单选题】
351.(A320)以下那些情况可以使PRV自动关断：1）预冷器下游有超温现象发生2）PRV下游有超压现象发生3）在发动机吊架，大翼或机身引气管路周围area有过热现象发生4）APU引气隔离valve没有关断5）相应的发动机起动valve没有关闭。___
A. A.1）2）
B. B.1）2）3）5）
C. C.1）2）5）
D. D.全部都可以使得PRV自动关断
【单选题】
352.(A320)引气隔离valve是属于哪一种valve？___
A. A.电控气动valve
B. B.电控电动valve
C. C.气控电动valve
D. D.气控气动valve
【单选题】
353.(A320)引气交输valve有两个马达：___
A. A.一个用于自动方式，另一个用于人工方式
B. B.两个用于自动方式
C. C.两个用于人工方式
D. D.一个是交流马达，一个是直流马达
【单选题】
356.(A320)在什么地方可能看到引气系统各参数的详细情况___
A. A.通过按压在ECAM控制面板上的BLEED按钮，在下ECAM显示器上
B. B.通过按压在ECAM控制面板上的ENG按钮，在下ECAM显示器上
C. C.在上ECAM显示器上
D. D.在MCDU上
【单选题】
360.(A320)转换压力传感器（Pt）会将感应到的压力值送到BMC，该传感器所起的作用是：___
A. A.用于故障监控
B. B.用于超压警告和关断
C. C.用于在ECAM的压力指示
D. D.以上都对
【单选题】
363.(A320)APU引气隔离valve是：___
A. A.它不能进行调节，只有开和关两个位置
B. B.它能够进行调节
C. C.它不能在驾驶舱控制
D. D.当发动机引气时，它就自动关闭
【单选题】
366.(A320)HPV属于哪一类型的valve___
A. A.电控气动valve
B. B.气控电动valve
C. C.气控气动valve
D. D.电控电动valve
【单选题】
367.(A320)OPV在正常情况下是：___
A. A.弹簧加载在关位
B. B.弹簧加载在开位
C. C.弹簧加载在半开位
D. D.由驾驶舱的发动机引气控制电门控制，电门在什么位置，valve就在什么位置
【单选题】
368.(A320)PRV调节下游压力在多大范围内：___
A. A.20+/-2psi
B. B.35+/-2psi
C. C.44+/-2psi
D. D.55+/-2psi
【单选题】
370.(A320)PRV属于哪一类型的valve___
A. A.气控气动valve
B. B.电控气动valve
C. C.电控电动valve
D. D.气控电动valve
【单选题】
372.(A320)大翼前缘通气系统的作用是什么？___
A. A.清除集聚在大翼前缘的燃油蒸气
B. B.使得大翼前缘的温度保持在安全的范围内
C. C.使得大翼前缘的压力保持在安全的范围内
D. D.A和B
【单选题】
373.(A320)当BMC监控到左边area的引气管路有渗漏时，以下哪些valve会关断：1）左发PRV2）左大翼防冰valve3）APU引气隔离valve4）引气隔离valve（如果电门选择在AUTO位时）___
A. A.1）
B. B.1）3）
C. C.3）4）
D. D.全部都会关断
【单选题】
374.(A320)当大翼前缘的引气管路或者防冰管路爆裂了，导致大翼前缘area的压力升高，这时能快速释放掉该area压力的装置是：___
A. A.是装在大翼前缘的压力释放接近面板
B. B.是大翼前缘的通气口
C. C.是装在大翼前缘的通气valve
D. D.是大翼前缘的接近面板的安装接缝
【单选题】
375.(A320)当地面气源没有接到飞机上时，以下哪个valve是防止管路中的引气从地面气源接头漏到机外？___
A. A.OPV
B. B.地面气源接头上的一个单向valve
C. C.PRV
D. D.HPV
【单选题】
376.(A320)当吊舱温度达到450摄氏度时，是什么来控制FAV的关闭：___
A. A.TCT
B. B.TLT
C. C.FAVvalve体上的一个热容栓
D. D.BMC
【单选题】
377.(A320)当发动机和APU工作，且APU引气valve选择在ON位时，正确的陈述为：___
A. A.发动机引气valve关，交输引气valve关，APU引气valve开
B. B.发动机引气valve开，交输引气valve开，APU引气valve关
C. C.发动机引气valve关，交输引气valve开，APU引气valve开
D. D.发动机引气valve开，交输引气valve关，APU引气valve开
【单选题】
378.(A320)当发动机引气有超压现象发生，导致了OPV关断，如何才能使得OPV再重新打开？___
A. A.当OPV上游的压力下降到35psi时，OPV就会打开
B. B.BMC感受到OPV上游压力下降到35psi时，BMC指令OPV打开
C. C.需要在地面才能复位
D. D.在驾驶舱按压复位电门
