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
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. [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、If they don’t involve any risks.
B、If they produce predictable side effects.
C、When the urgent need for them arises.
D、When tests show that they are relatively safe.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2923782.html
相关试题推荐
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]Duringtheproductionofspeech,whenbabieslisten,whatthe
[originaltext]Geniusesaregettingbrighter.AndatgeniuslevelsofIQ,gi
[originaltext]Geniusesaregettingbrighter.AndatgeniuslevelsofIQ,gi
[originaltext]WhatIfearedmostformyselfatyouragewasnotpoverty,bu
[originaltext]E-booksarebringingaboutaprofoundrevolutioninthewayb
[originaltext]AmericanmagicianDavidBlaineistobesuspendedinaglass
[originaltext]AmericanmagicianDavidBlaineistobesuspendedinaglass
[originaltext]W:AreyougoingtothefairnextSaturday?M:Whatfair?W:The
随机试题
Anumberoffactorsrelatedtothevoicerevealthepersonalityofthespeak
Henryisabeggar.Hehasthehabitofpickingupcigaretteendsleftbyotherp
生姜性温归胃经,有止呕之功,善治A.胃寒呕吐 B.胃热呕吐 C.胃虚呕吐
A.歧骨至脐中 B.两乳头之间 C.耳后两乳突之间 D.内辅骨下廉(胫骨内
小陈会抽烟,周围的同学都觉得很神奇,于是小李也学习抽烟,但是回到家,小李在爸爸面
投资者购买保证收益理财计划时不承担任何风险。()
小学教育通常是一个国家学制中第一个阶段的教育,也称为_教育。
经法定程序由同级人民代表大会常务委员会批准的年度政府预算执行结果的会计报告称为(
招标人应当自收到评标报告后之日起( )内公示中标候选人,公示期不得少于( )
解磷定治疗有机磷中毒的机制A、解除有机磷中毒的毒蕈碱样症状 B、与有机磷结合排
最新回复
(
0
)