首页
登录
职称英语
[originaltext] In order for a chemical to be considered a drug, it must have
[originaltext] In order for a chemical to be considered a drug, it must have
游客
2023-08-19
35
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. 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. 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. [25] 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.
23. Under what circumstances are drugs approved?
24. Why do many people suffer side-effects from a drug even though they take it as directed?
25. 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
录音提到,病人也可能会对某种药产生抗药性,这就意味着病人要加大剂量,以达到预期的药效。由此可知答案为A。
转载请注明原文地址:https://tihaiku.com/zcyy/2940235.html
相关试题推荐
[originaltext]W:You’vebeentravelingallyourlife.Whenareyougoingtoset
[originaltext]TheOldCanadaRoadisalonglosttrailbetweentheCanadian
[originaltext]Desertificationisaprocess.Itchangesproductivelandinto
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
[originaltext]Facialexpressionscarrymeaningthatisdeterminedbysituat
[originaltext]W:Areyoubusythisevening?I’mgoingovertotheInternational
[originaltext]W:Hi,Sam.WelcometotheEllenShow.M:Thankyou.W:Sam,how
[originaltext]W:Hi,Sam.WelcometotheEllenShow.M:Thankyou.W:Sam,how
[originaltext]W:MaybeweshouldtakeFrontStreetthismorning.Theradioanno
随机试题
Asweallknow,foodis(essence)______tolife.essential因为空格前面是系动词.后面需要形容词作表语,所
He______(一定已经完成了工作);otherwise,hewouldn’tbeenjoyinghimselfbytheseaside.
Themovementofthemoonconvenientlyprovidedtheunitofmonth,whichwas____
Sheneverdreamsof____________(有机会)forhertobesentabroadverysoon.thereb
Therewasariverwithasmalltownone
升降作业过程,必须有专人指挥,专人照看电源,专人操作液压系统,专人拆装螺栓更换。
采用水飞法可降低毒性的药物是A.朱砂B.珍珠C.木香D.葛根E.芒硝
左边给定的是纸盒的外表面,下列哪一项能由它折叠而成?
学习迁移理论中相同要素说的提出者是( )。 A.桑代克 B.贾德 C
某执行价格为1280美分的大豆期货看涨期权,当标的大豆期货合约市场价格为1300
最新回复
(
0
)