首页
登录
职称英语
[originaltext]In order for a chemical to be considered a drug, it must have the
[originaltext]In order for a chemical to be considered a drug, it must have the
游客
2024-03-29
62
管理
问题
In order for a chemical to be considered a drug, it must have the capacity to affect how the body works. No substance that has the power to do this is completely safe. [20] Drugs are approved only after tests have demonstrated that they are relatively safe when used as directed and when their benefits outweigh their risks. Thus some very dangerous drugs are approved because they are necessary to treat serious illnesses. [21] Many people suffer ill-effects from drugs called side-effects even though they take the drugs exactly as directed. The human population contains a great variety of genetic variation. But drugs are tested on just a few thousand people. When a particular drug is taken by millions, some people may not respond in a predictable way even though the drug has been tested. [22] A patient may also acquire a tolerance for a certain drug, which means the patient has to take ever-larger doses to produce the desired effects. Tolerance may lead to heavy situation, in which a person becomes so dependent on the drug that he or she becomes addicted to it. Addiction causes severe psychological and physical disturbances when a drug is taken away. Finally, drugs often have unwanted side-effects. They usually cause only minor discomfort, such as a skin rash, headache or sleepiness. Certain drugs, however, can produce serious adversary actions.
20.Under what circumstances are drugs approved?
21.Why do many people suffer side-effects from a drug even though they take it as directed?
22.What will happen when patients acquire a tolerance for a certain drug?
选项
A、They will have to take ever larger doses.
B、They will become physically impaired.
C、They will suffer from minor discomfort.
D、They will experience a very painful process.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3531147.html
相关试题推荐
[originaltext]Whenwethinkofgames,thereareallkindsofthings.Maybeyou’
[originaltext]Whenwethinkofgames,thereareallkindsofthings.Maybeyou’
[originaltext]MyfellowSingaporeans:Whatwereyourmostmemorablemoments
[originaltext]MyfellowSingaporeans:Whatwereyourmostmemorablemoments
[originaltext]AbeetleinvasionintheUnitedStateshaskilledatleasttwenty
[originaltext][12]Intoday’spersonalitystakes,nothingismorehighlyvalued
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Howeve
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Howeve
[originaltext]W:Hello.M:Hello,isthatthereferencelibrary?W:Yes.CanI
[originaltext]W:Hello.M:Hello,isthatthereferencelibrary?W:Yes.CanI
随机试题
Althoughnumbersofanimalsinagivenregionmayfluctuatefromyeartoyea
Accordingtothepassage,manypeoplelearnanumberofEnglishwordsbecause__
教育部党组织决定2013年秋季开学起,在全国各级各类学校深入开展“三爱”教育,其
影响幼儿身心发展的因素可分为两个方面:一是_________;一是_______
心力衰竭伴快速心房颤动时首选静脉使用的正性肌力药物是A.西地兰 B.地高辛
下边四个图形中,只有一个是由上边的四个图形拼合(只能通过上、下、左、右平移)而成
通过住宅的布置,可以提高通风效果的是( )。A.住宅与主导风向垂直 B.采用
(2015年真题)虚喘多见A.呼吸不畅,胸闷气短 B.呼吸有力,声高气粗 C
以下关于软土基坑开挖基本规定说法正确的是()。A.必须分层、分块、均衡地开挖
某施工企业在进行施工成本控制时,为了及时了解实施项目的成本情况,需要将计划成本与
最新回复
(
0
)