【单选题】
对细胞的概念，近年来比较普遍的提法是：有机体的___
A. 形态结构的基本单位
B. 形态与生理的基本单位
C. 结构与功能的基本单位
D. 生命活动的基本单位
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答案
D
解析
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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
【单选题】
(9)Often these procedures yield a compound having acceptable___ and safety.___
A. strength
B. effect
C. potency
D. effort
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【单选题】
当发现有大量毒气扩散，且短时间内难以控制时，消防人员应协同有关部门及时疏散可能遭遇毒气侵害的人员，特别要先疏散毒源___受威胁的人员。
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C. 沾染区域
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【单选题】
在扑救危险品仓库火灾时，当火场爆炸危险性大，连续爆炸难以制止，并威胁人员安全时，应___。
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B. 强攻近战，利用大流量水进行冷却
C. 以快制快，迅速控制爆炸发生
D. 对危险物品的实施疏散和保护
【单选题】
扑救危险品仓库火灾时，应采用___战术措施，适时消灭火灾。
A. “冷却防爆、强攻近战”
B. “重点突破、逐片消灭”
C. “分段合击、区域窒息”
D. “堵截包围、阵地为主”
【单选题】
各级政府应急救援指挥体系，应以反应快速灵敏为要求，对现有的应急联动指挥平台进行整合，统一规划、统一投入、统一建设___
A. 传达及时
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下列哪个国家，每个州均独立管理消防事务，设有城市消防局和乡村消防局两个消防部门，主要职能包括火灾预防，火灾、交通事故、水灾、地震等灾害事故救援、化学事故处置等。___
A. 美国
B. 澳大利亚
C. 芬兰
D. 德国
【单选题】
地面建筑坍塌事故特点不包括?___
A. 内部设施设备损坏严重，难以正常运转。
B. 需要的救援力量多，情况复杂，救援难度大、时间长，大型救援装备使用困难。
C. 工程通道少、结构简易，人员疏散困难。
D. 容易造成大量人员伤亡，社会影响大。
【单选题】
下列哪一项不属于处理施工中建筑倒塌事故的措施？___
A. 清理倒塌建筑边缘部位的建筑材料、施工机械和其他堆放物品，建立抢险救援平台和救援车辆通道，开展救援行动。
B. 调用市政部门的大型铲车、吊车、推土机、运输车等机械设备，对建筑倒塌堆垛边清理、边搜寻人员。
C. 救援受出入口影响，加之空间有限，难以使用大型挖掘、起吊装备，应使用破拆、切割、撑顶等装备进行施救。
D. 对救出的受伤人员，以医疗急救部门为主实施现场急救，伤情较重的应立即送往医院进行救治。
【单选题】
天然气为无色无味的易燃气体，其83%～99%的成分为___。天然气液态相对密度(水=1)约为0.45，由液态变为气态体积扩大600倍，爆炸极限为5%～14%。遇火源、热源有着火爆炸危险，与氯气、次氯酸、液氧等强氧化剂接触剧烈反应。吸入高浓度的天然气能造成人窒息死亡。
A. 甲烷
B. 乙烷
C. 丙烷
D. 丁烷
【单选题】
下列哪一项不是处置液化石油气的行动要求？___
A. 正确选择停车位置和进攻路线。
B. 设立现场安全员，确定撤离信号，实施全程动态仪器检测。
C. 作业人员在泄漏区域的下水道或地下空间的顶部、井口处、储罐两端等处进行处置。
D. 调集一定数量的消防车在泄漏区域附近集结待命。
【单选题】
船舶事故是指船舶（客船、货船、油气船等）在内河或海域由于相撞、触礁、操作不当、系统失控、气象影响等原因发生爆炸燃烧、搁浅翻沉等，造成人员伤亡和财产损失的灾害。下列哪项不是该种事故的特点？___
A. 事故危害严重。
B. 类型、结构复杂。
C. 救援难度大。
D. 次生灾害危害小。
【单选题】
高速公路隧道发生事故，应立即与高速路政部门或高速交警部门取得联系，确定事故的准确地点及消防车辆行车路线。由其在来车方向___处实施布控，封闭道路并派车引导救援车辆抵达事故地点。
A. 1km
B. 2km
C. 3km
D. 4km
【单选题】
海啸发生发展速度快，通常以每小时大约___的速度扩展。短时间内就可席卷岛屿或大陆沿海地区，受灾区域广大。
A. 500～600km
B. 600～700km
C. 700～800km
D. 800～900km
