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
2023-08-13
61
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、Because they are not accustomed to it.
B、Because they are not psychologically prepared for it.
C、Because their genes differ from those who have been tested for it.
D、Because they are less sensitive to it than those who have been tested for it.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2923783.html
相关试题推荐
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]WhatIfearedmostformyselfatyouragewasnotpoverty,bu
[originaltext]E-booksarebringingaboutaprofoundrevolutioninthewayb
[originaltext]E-booksarebringingaboutaprofoundrevolutioninthewayb
[originaltext]AmericanmagicianDavidBlaineistobesuspendedinaglass
[originaltext]AmericanmagicianDavidBlaineistobesuspendedinaglass
[originaltext]AmericanmagicianDavidBlaineistobesuspendedinaglass
[originaltext]W:AreyougoingtothefairnextSaturday?M:Whatfair?W:The
随机试题
Whendawncame,theyrealizedthattheboatwasblockedinice.Thecaptain(81
Englishistheleadinginternationallanguage.Indifferentcountriesaround
HowtoBeaGoodConversationalistAgoodconversationalist
CollegeLifeAmericancollegeanduniversitystudentswho【T1】______away
TheAmericansbelievethatanybodycanb
下列哪项不符合气胸的体征()A.可无明显体征 B.Hamman征阳性 C
恩格斯指出“我们只能在时代的条件下进行认识,而这些条件达到什么程度,我们便能认识
患者男,48岁。有胃病病史十余年,近一年症状加剧,食欲不振来就诊。胃镜检查见胃角
分泌大量降钙素的甲状腺癌是<P>A.乳头状腺癌<br>B.滤泡状腺癌<br>C.
对偷税、抗税、骗税的,税务机关追征其未缴或者少缴的税款、滞纳金或者所骗取的税款,
最新回复
(
0
)