【单选题】
香樟是一种在长江三角洲地区常见的树种，它是属于 ___
A. 常绿针叶树种
B. 落叶针叶树种
C. 常绿阔叶树种
D. 落叶阔叶树种
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相关试题
【单选题】
老虎与豹是属于同一科大动物。下列动物中也属该科的是___
【单选题】
生物是人类不可缺少的“朋友”，但目前正遇到___
A. 人工培育威胁
B. 种类减少威胁
C. 自相残杀威胁
D. 天外来客威胁
【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
【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
推荐试题
【单选题】
对于事故的预防与控制,安全___对策着重解决物的不安全状态问题。
【单选题】
国家标准《安全色》中规定,安全色为___四种颜色。
A. 红.蓝.黑.绿
B. 红.青.黄.绿
C. 红.蓝.黄.绿
【单选题】
安全生产管理的目标是减少.控制危害和事故,尽量避免生产过程中由于___所造成的人身伤害.财产损失及其他损失。
【单选题】
生产经营单位为了保证安全资金的有效投入,应编制安全技术措施计划,其核心是___。
A. 安全技术预案
B. 安全技术手册
C. 安全技术措施
【单选题】
根据突发环境事件的发生过程.性质和机理,突发环境事件分为:突发环境污染事件.___事件和辐射环境污染事件。
A. 危险化学品污染
B. 光化学污染
C. 生物物种安全环境
【单选题】
针对应急预案中全部或大部分应急响应功能,检验.评价应急组织应急行动能力的演练活动叫___演习。
【单选题】
在应急救援过程中,物资供应部门负责抢险和抢救物资的___等工作。
【单选题】
生产经营单位应当及时向有关部门或者单位报告应急预案的___,并按照有关应急预案报备程序重新备案。
【单选题】
《危险化学品安全管理条例》规定,___不得在托运的普通货物中夹带危险化学品,不得将危险化学品匿报或者谎报为普通货物托运。
【单选题】
《安全生产法》规定,危险物品的生产.经营.储存单位以及矿山.金属冶炼.城市轨道交通运营.建筑施工单位应当建立___组织；生产经营规模较小，可以不建立的，应当指定兼职的应急救援人员。
【单选题】
《危险化学品安全管理条例》规定,化学品安全技术说明书和化学品安全标签所载明的内容应当符合___标准的要求。
【单选题】
人体直接接触或过分接近正常带电体而发生的触电现象称为___触电。
【单选题】
发生汽水共腾的主要原因是___。
A. 炉水pH值太低
B. 炉水含盐量太低
C. 炉水含盐量太高
【单选题】
依照卫生部公布的职业病目录,法定尘肺不包括___。
【单选题】
爆炸现象的最主要特征是___。
A. 压力急剧升高
B. 温度升高
C. 发热发光
【单选题】
可燃粉尘的粒径越小,发生爆炸的危险性___。
【单选题】
零售业务的店面与存放危险化学品的库房(或罩棚)应有实墙相隔。单一品种存放量不能超过()kg,总质量不能超过___t。
A. 500.2
B. 300.1
C. 500.3
【单选题】
下列可以露天堆放的物品是___。
A. 剧毒物品
B. 遇湿燃烧物品
C. 腐蚀物品
【单选题】
当受热.撞击或强烈震动时,容器内压力急剧增大,致使容器破裂爆炸,或导致气瓶阀门松动漏气,酿成火灾或中毒事故的危险化学品为___。
A. 爆炸品
B. 易燃液体
C. 压缩气体和液化气体
【单选题】
按照《化学品安全标签编写规定》的要求,化学品的名称应用___标明。
【单选题】
海因里希对5000多起伤害事故案例进行了详细调查研究后得出海因里希法则,事故后果为严重伤害.轻微伤害和无伤害的事故件数之比为___。
A. 1:10:300
B. 1:29:300
C. 1:10:100
【单选题】
《生产安全事故报告和调查处理条例》中要求,事故报告应当及时.准确.___。
【单选题】
锅炉上的易熔塞.电路中的熔断器都是减少事故损失的措施,其具体作用可概括为___。
【单选题】
特种设备使用单位对在用特种设备应当至少每___进行一次自行检查,并作出记录。
【单选题】
化学品安全技术说明书中所写化学品名称___。
A. 必须用中.英文两种形式填写
B. 只写中文名称,不用写英文名称
C. 只写英文名称,不写中文名称
【单选题】
在同一房间或同一区域内,不同的物料之间分开一定的距离,非禁忌物料间用通道保持空间的储存方式叫___储存。
【单选题】
运输危险化学品的车船及其它运输工具___搭乘无关人员。
【单选题】
下列___是事故隐患排查治理和防控的责任主体。
A. 安全监管监察部门
B. 生产经营单位
C. 政府有关部门
【单选题】
企业应急预案的编制要做到___,使预案的制定过程成为隐患排查治理的过程和全员应急知识培训教育的过程。
【单选题】
《危险化学品安全管理条例》规定,___级以上人民政府应当建立危险化学品安全监督管理工作协调机制,支持.督促负有危险化学品安全监督管理职责的部门依法履行职责,协调.解决危险化学品安全监督管理工作中的重大问题。
【单选题】
《危险化学品经营企业开业条件和技术要求》规定,零售业务的店面内危险化学品的摆放应布局合理,___不能混放。综合性商场(含建材市场)所经营的危险化学品应有专柜存放。
【单选题】
《安全生产法》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，应当设置___机构或者配备专职安全生产管理人员。
【单选题】
带电灭火时,若用水枪灭火,宜采用___水枪。
【单选题】
《气瓶安全监察规程》规定,采用车辆运输时,气瓶要妥善固定。卧放时,瓶阀端应朝向一方,垛高不得超过___层且不得超过车箱高度。
【单选题】
下列属于职业危害中物理危害的是___。
【单选题】
在《常用危险化学品的分类及标志》中规定,每种常用危险化学品最多可选用___个安全标志。
【单选题】
苯急性中毒主要表现为对中枢神经系统的麻醉作用,而慢性中毒主要为___系统的损害。
【单选题】
受日光照射能发生化学反应引起燃烧.爆炸.分解.化合或能产生有毒气体的危险品包装应采取___措施。
