【单选题】
被发现在南非的古沉积岩中，地球上最早出现的绿色植物是___
A. 蕨类植物
B. 地衣
C. 蓝藻
D. 苔藓
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相关试题
【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 ___
【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
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【单选题】
在有坠落危险且高度在基准面（ ）米及以上的作业，应采取防坠落措施。[1分] ___
【单选题】
《职业病防治法》第五条规定，用人单位应当建立、健全职业病防治（ ），加强对职业病防治的管理，提高职业病防治水平，对本单位产生的职业病危害承担责任。[1分] ___
【单选题】
劳动者被诊断患有职业病，但用人单位没有依法参加（ ）保险的，其医疗和生活保障由该用人单位承担。[1分] ___
【单选题】
《安全生产法》第五十三条规定，因生产安全事故受到损害的从业人员，除依法享有工伤保险外，依照有关民事法律尚有获得赔偿的权利的，有权向( )提出赔偿要求。[1分] ___
A. 本单位
B. 安全生产监督管理部门
C. 工伤保险经办机构
D. 劳动和社会保障部门
【单选题】
置换作业介质流速应控制在（ ）m/s。[1分] ___
A. 1～3
B. 2～4
C. 3～5
D. 4～6
【单选题】
在金属容器内进行焊接工作，容器外应设专人监护，监护人与焊工距离应保持（ ）[1分] ___
A. 1m内
B. 1.2m内
C. 1.3m内
D. 在对方视力或听力范围内
【单选题】
站控系统检修维护中，下列说法正确的是（ ）。[1分] ___
A. 经站长许可，就可在站控操作员站上进行软件安装、文件修改、文件复制转移等操作
B. 站控电脑外部接口可供值班人员日常手机充电使用
C. 维护作业前，应将全站电动执行机构切换至远控状态
D. 维护作业前，应关闭站内电动ESD紧急放空阀前手动球阀
【单选题】
焊接作业中电焊机的（ ）工作应由具备资质人员操作。[1分] ___
A. 接拆线与停送电
B. 只需接拆线
C. 只需停送电
【单选题】
《安全生产法》第二十一条规定，矿山、金属冶炼、建筑施工、道路运输单位和危险物品的生产、经营、储存单位除外的其他生产经营单位，从业人员超过( )人的，应当设置安全生产管理机构或者配备专职安全生产管理人员。[1分] ___
A. 100
B. 400
C. 300
D. 200
【单选题】
职业病防治工作坚持（ ）的方针，建立用人单位负责、行政机关监管、行业自律、职工参与和社会监督的机制，实行分类管理、综合治理。[1分] ___
A. 防治为主、 预防结合
B. 预防为主、 防治结合
C. 防治为主、 预防为辅
【单选题】
中控系统维护检修时，下列说法错误的是：（ ）[1分] ___
A. 中控系统的所有操作系统或设备宜采用强密码方案进行管理
B. 经站长允许，可在中控系统的服务器、工程师站、操作员站、交换机上进行软件安装、文件修改、文件复制转移等操作
C. 除维护和特殊检修作业外，服务器、工程师站、操作员站应屏蔽软盘、U盘等外部接口
D. 存储介质使用前应定使用专用杀毒工具进行病毒查杀
【单选题】
《安全生产法》第六十二条规定，安全监督管理部门对违法生产、储存、使用、经营、运输的危险物品的作业场所予以（ ），并依法作出处理决定。[1分] ___
A. 扣押
B. 查封
C. 关闭停
D. 纠正或者要求限期改正
【单选题】
高空作业安全带的使用方法是 （ ）[1分] ___
A. 低挂高用
B. 平挂平用
C. 无特殊要求
D. 高挂低用
【单选题】
遇有（ ）级以上强风、雷电、暴雨、大雪、大雾等恶劣天气，不得进行露天脚手架搭拆作业。[1分] ___
【单选题】
管道外检测作业过程中应做好安全措施，应至少安排（）进行检测作业[1分] ___
【单选题】
在工艺区对新管道进行预制焊接作业，属于（ ）[1分] ___
【单选题】
通信系统维护或检修作业前，应将SCADA控制系统权限切换至（ ）。[1分] ___
A. 中心站或值守站
B. 调度中心
C. 异地
D. 本地
【单选题】
发电机检修前，依次关闭的顺序为（ ）；[1分] ___
A. 蓄电池充电器、断开充电器与蓄电池连接、断开蓄电池与发电机连接
B. 蓄电池充电器、断开蓄电池与发电机连接、断开充电器与蓄电池连接
C. 断开蓄电池与发电机连接、蓄电池充电器、断开充电器与蓄电池连接
D. 断开充电器与蓄电池连接、蓄电池充电器、断开蓄电池与发电机连接
【单选题】
在基坑、沟槽边缘堆放土方或其他材料时，土方（或其他材料）底角与坑边距离应不小于（ ）米，且堆土高度不应超过（）米，如因现场条件所限，可采取特殊措施对基坑进行加固，有效防止基坑坍塌或堆料倒塌。[1分] ___
A. 0.8 1.5
B. 0.8 1
C. 0.5 1.5
D. 0.5 1
【单选题】
线路截断阀检维修作业中，在更换线路截断阀执行机构电池前，主板保护功能与断电操作顺序为（）[1分] ___
A. 先对主板进行断电，再撤出主板保护功能
B. 先撤出主板保护功能，再对主板进行断电
C. 无先后顺序要求
【单选题】
电焊时焊工应避免与铁件直接接触，并穿干燥的工作服，站立在（ ）[1分] ___
A. 橡胶绝缘垫上
B. 穿橡胶绝缘鞋
C. 橡胶绝缘垫上和穿橡胶绝缘鞋
D. 橡胶绝缘垫上或穿橡胶绝缘鞋
【单选题】
深基坑（开挖深度超过（ ）以上或地下室三层以上，或深度虽未超过（ ），但地质条件和周围环境及地下管线特别复杂的基坑）作业应编制专项施工方案，采取相应的安全防护措施，方案及措施应经专家评审。[1分] ___
【单选题】
工会组织对用人单位违反职业病防治法律、法规，侵犯劳动者合法权益的行为，有权要求（ ）。[1分] ___
【单选题】
《安全生产法》第三十二条规定，生产经营单位应当在有较大危险因素的生产经营场所和有关设施、设备上，设置明显的( )。[1分] ___
A. 安全使用标志
B. 安全警示标志
C. 安全合格标志
D. 安全检验检测标志
【单选题】
注氮完毕后，应先（ ）液氮注入侧阀，再（）管道侧阀门。[1分] ___
A. 关闭 关闭
B. 关闭 打开
C. 打开 关闭
D. 打开 打开
【单选题】
《职业病防治法》所称职业病，是指企业、事业单位和个体经济组织等用人单位的劳动者在职业活动中，因接触粉尘、（ ）和其他有毒、有害因素而引起的疾病。[1分] ___
【单选题】
焊接作业中，使用氧气时，不得将瓶内气体全部用完，氧气瓶最少应留（ ）。[1分] ___
A. 0.1MPa
B. 0.1bar
C. 0.1Pa
D. 0.1KPa
【单选题】
喷砂作业时，应避免扬尘对环境造成污染,宜采用（ ）对管道及其附属设施进行除锈工作。[1分] ___
A. 机械除锈
B. 化学除锈
C. 不用除锈
D. 水喷砂除锈
【单选题】
防腐大修中，在工艺区对管道进行喷沙作业，属于（ ）[1分] ___
【单选题】
站控系统维护作业前，应将全站电动执行机构切换至就地（ ）状态。[1分] ___
A. stop
B. local
C. remote
D. ok
【单选题】
《安全生产法》第十七条的规定，不具备安全生产条件的生产经营单位( ) 。[1分] ___
A. 不得从事生产经营活动
B. 经安全生产监管部门批准后可从事生产经营活动
C. 经主管部门批准后允许生产经营
D. 经国家安全监督管理总局批准后方可从事生产经营活动
【单选题】
发电机检修完成后，依次恢复的顺序为（）；[1分] ___
A. 开启蓄电池充电器、充电器与蓄电池连接、蓄电池与发电机连接
B. 蓄电池与发电机连接、充电器与蓄电池连接、开启蓄电池充电器
C. 开启蓄电池充电器、蓄电池与发电机连接、充电器与蓄电池连接
D. 蓄电池与发电机连接、开启蓄电池充电器、充电器与蓄电池连接
【单选题】
变压器检修前应启动（）供电，确认发电机运行平稳、正常带载后再断开变压器（）开关。[1分] ___
A. UPS 低压侧
B. UPS 高压侧
C. 发电机 低压侧
D. 发电机 高压侧
【单选题】
防腐作业中，使用电火花检测仪作业时，探棒严禁对仪器面板直接打火，检测人员应戴上（），被测防腐层表面应保持干燥，任何人不得接触探极和被测管道，以防触电。[1分] ___
A. 电工手套
B. 线手套
C. 高压绝缘手套
D. 橡胶手套
【单选题】
进入受限空间作业应指定专人监护，监护人（ ）。[1分] ___
A. 不得离开监护现场
B. 每隔3分钟到巡查
C. 每隔5分钟到巡查
D. 每隔10分钟到巡查
【单选题】
不间断电源（UPS）进行拆卸作业前，应先断电，在相应隔离开关上悬挂禁止操作牌，并静置（ ）分钟以上，待主机电容放电完成后方可进行[1分] ___
【单选题】
《安全生产法》把加强事前预防、强化隐患排查治理作为一项重要内容，纳入法律规范，对生产经营单位未采取措施消除事故隐患的，不仅对单位处10万元以上50万元以下的罚款，还对其（ ）处2万元以上5万元以下的罚款。[1分] ___
A. 直接负责的主管人员
B. 直接负责的主管人员和其他直接责任人员
C. 主要负责人
D. 其他直接责任人员
【单选题】
带压仪表设备或仪表管线拆装作业前，应关闭（ ）并通过泄压孔泄压至零，拆装作业时作业人员应侧身站位，不得正面面对泄压口、仪表管线连接处等危险部位。[1分] ___
A. 一次取压阀
B. 二次取压阀
C. 放空阀
D. 排污阀
【单选题】
脚手架应正确设置，并采取防坠落措施，每（ ）作业层的架体应设置完整可靠的台面、防护栏杆和挡脚板，台面荷载不得超过核算承载力。[1分] ___
【单选题】
对职业病防护设备、应急救援设施和个人使用的职业病防护用品，用人单位应当进行经常性的维护、检修，定期检测其性能和效果，确保其处于正常状态，不得擅自( )或者停止使用。[1分] ___
