【单选题】
植物、藻类利用叶绿素产生的光合作用过程中，在可见光的照射下，能将二氧化碳和水转化为有机物，释放出的是 ___
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相关试题
【单选题】
呼吸作用是生物体内的有机物在细胞内经过一系列的氧化分解，在释放出能量的同时，最终生成的主要是 ___
A. 氧气
B. 二氧化碳
C. 氮气
D. 不知道
【单选题】
晚上，植物与动物都不应该放入卧室内，要将其移到卧室外，这是因为它们会降低卧室内的___
A. 空气温度
B. 空气湿度
C. 氧气浓度
D. 氮气浓度
【单选题】
杂交优势往往在第几代杂交种子中表现最明显。___
【单选题】
以下不属于人体增强技术类型的是___
A. 短暂性增强
B. 持续性增强
C. 结构性增强
D. 内在增强
【单选题】
大陆漂移学说是由谁提出的___
A. 勒比雄
B. 魏格纳
C. 赫斯
D. 李四光
【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
【单选题】
10)In many laboratories today, robots___ the routine work of parallel synthesis.___
A. help
B. assist with
C. assist in
D. assist to
【单选题】
(1)Pharmaceutics is an interdisciplinary subject involving___
A. formulation, manufacturing, physical pharmacy, and biopharmaceutics
B. manufacturing
C. physical pharmacy
D. biopharmaceutics
【单选题】
（2）Formulation is about the design, development and evaluation of dosage forms,___
A. discovery of novel drugs
B. analytical methods
C. drug delivery systems and manufacturing process
D. dosing regimen
【单选题】
(3)Biopharmaceutics mainly studies the in vivo process of drugs and metabolites in humans, animals and tissue culture, which specifically involves___
A. absorption and distribution
B. absorption, distribution, metabolism, and excretion
C. metabolism and excretion
D. absorption and excretion
【单选题】
(4)Regarding the definition of bioavailability(BA), BA is related to___
A. total plasma drug concentration only
B. unbound drug concentration in the plasma
C. unbound drug concentration at the target site
D. total plasma drug concentration, and the administered drug dose
【单选题】
(5)Plasma drug concentration is affected by following factors such as___
A. rate of absorption
B. rate and extent of distribution
C. rate ofeli Imination
D. all ofabove
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【单选题】
在罐体内作业照明电压应小于等于 V，且绝缘良好。 ___
【单选题】
中途因动车组故障停车后须下车进行故障应急处理时，由随车机械师向司机提出要求向局调度所申请邻线限速或封锁命令，在本线一侧处理故障时邻线限速 km/h；在两线间处理故障时停车区间全线封锁。 ___
A. 40
B. 80
C. 160
D. 200
【单选题】
接触网供，断电作业必须由 在场共同进行，并做好呼唤应答。 ___
A. 操作员，作业组长
B. 操作员，监护员
C. 作业组长，工班长
D. 操作员，工班长
【单选题】
对动车组供风及制动系统，受电弓，前罩开闭机构，自动车钩及转向架等供风，用风设备进行检修作业时，须采取 等安全措施。 ___
A. 供电，供风
B. 打开风源，供风
C. 断电，放电
D. 截断风源，排风
【单选题】
进行受电弓检测时，车顶作业人员须与司机室内升，降弓操作辅助人员做好 ，防止意外升，降弓造成人身伤害。 ___
A. 呼唤应答
B. 观察
C. 技术交接
D. 签字确认
【单选题】
遇有能见度不足 m的大雾，暴风雨（雪），雷电密集，扬沙等恶劣天气时，禁止上道作业。 ___
A. 150
B. 200
C. 250
D. 300
【单选题】
车下作业时，作业人员未按规定佩戴必备的安全头盔或防护帽，可能会 。 ___
【单选题】
车下作业时，作业人员禁止直接用手触摸电机，主变压器和 等装置高温烫伤。 ___
A. 底板
B. 齿轮箱
C. 车轴
D. 自动过分相信号接收器
【单选题】
更换制动闸片后，通过全列制动，缓解操作，夹钳装置自动调节闸片与制动盘的间隙时，车底作业人员与司机室辅助操作人员须做好 ，防止意外夹伤。 ___
A. 呼唤应答
B. 观察
C. 技术交接
D. 签字确认
【单选题】
使用扳手，管钳时， 在套加力管。 ___
【单选题】
更换司机室头车玻璃，客室外窗玻璃时，作业人员必须穿戴 和防护服，防护手套。 ___
【单选题】
接地防护必须采用接触网与地（钢轨） 连接的方式。 ___
【单选题】
氧气瓶，乙炔瓶禁止靠近火源或在阳光下曝晒，使用时安全距离不少于 m；二者严禁混放，且间距不得少于5m。 ___
【单选题】
露天工作场所遇有 以上大风时禁止高空作业。 ___
【单选题】
汽笛鸣笛，压缩空气释放，电机运转的声音可能非常大，在上述环境下作业时，作业人员应注意 。 ___
A. 防止被灼伤，烫伤
B. 保护眼睛
C. 保护听力
【单选题】
在执行职务时，必须坚守岗位，穿着规定的服装，佩戴易于识别的证章或携带相应的证件，讲 。 ___
【单选题】
接班前已经饮酒，尚未大醉的，可以允许其工作。 ___
【单选题】
工作中坚守岗位，遵守纪律，不得做与工作无关的事情。 ___
【单选题】
严禁脱岗，串岗，私自替班，换班。 ___
【单选题】
可以穿高跟鞋，拖鞋及赤膊上班。 ___
【单选题】
进行车门开关试验时，必须车内广播通知作业人员，防止坠落，夹伤。 ___
【单选题】
除了调车人员作业时在规定的速度外，其他人搭乘机车，车辆时，必须停车上下。 ___
【单选题】
在线路上和接近线路作业人员，要坚持同去同归。 ___
【单选题】
禁止走道心，枕木头，岔路尖和侵入线路限界。 ___
【单选题】
各级干部不得玩忽职守，强令工人违章和冒险蛮干。 ___
【单选题】
合同工，学徒工，实习人员，干部劳动在学习期间，可以单独顶岗。 ___
【单选题】
对定职，定级和改职工人，均必须经安全技术考试，鉴定合格后方准顶岗。 ___
【单选题】
养成良好的安全行为是规避风险，保护自己，防止事故发生的前提。 ___
【单选题】
严禁在运行中的机车，车辆前方抢越。 ___
【单选题】
上道作业人员接到来车通知后，必须停止作业,迅速撤离到安全地带待避车。 ___
【单选题】
从停留车辆的端部横过线路时，徒手通过应不少于1．5米。 ___
【单选题】
对超过高度的各种脚手架，走台，扶梯等，都应不低于2米高的防护拦杆。 ___
【单选题】
必须严格执行作业标准，操作规程等有关的安全规章制度，不简化作业过程。 ___
【单选题】
含有腐蚀性化学成分的蓄电池电解液，用于齿轮，压缩机等的油以及润滑剂，胶和密封剂，都可能具有腐蚀性或引起皮肤或肺部刺激。进行相关检修工作时，注意环境通风良好，并保护好皮肤和眼睛。 ___
【单选题】
在蓄电池附近作业时须防止爆炸伤害发生，在非安全距离内禁止明火作业。 ___
【单选题】
两人以上从事同一作业时，必须指定专人指挥，统一行动，相互配合，呼唤应答。 ___
