首页
登录
职称英语
[originaltext] In order for a chemical to be considered a drug, it must have th
[originaltext] In order for a chemical to be considered a drug, it must have th
游客
2024-05-11
40
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. [33]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. [34]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.
[35]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.
33. Under what circumstances are drugs approved?
34. Why do many people suffer side-effects from a drug even though they take it as directed?
35. 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
短文听力常常是“听到什么选什么” 。录音提到,药物只能在经过安全测试后,并在指导下使用。故答案为 B
转载请注明原文地址:http://tihaiku.com/zcyy/3594153.html
相关试题推荐
______chemicalanalysisshowsthatwaterismadeupofhydrogenandoxygen.A、Pro
Thefireextinguisherusesachemical______ratherthanwater.A、foamB、foilC、f
[originaltext]TheUKgovernmentisproposingagraduatetaxforstudentsin
[originaltext]JaneAldridgehopedtogetafewreaderswhenshestartedas
[originaltext]JaneAldridgehopedtogetafewreaderswhenshestartedas
[originaltext](30)MillionsofyoungstersacrossEuropecouldsufferpermane
[originaltext](30)MillionsofyoungstersacrossEuropecouldsufferpermane
[originaltext]W:(19)Whythelongface?I’veneverseenyousodown.Ithought
[originaltext]W:(19)Whythelongface?I’veneverseenyousodown.Ithought
[originaltext]IfyouareinanymajorcityinAmerica,thechancesarehigh
随机试题
Whydidn’tthemanattendthepicnic?[br][originaltext]W:Ididn’tseeyouat
AsCEO,Tanier’sworstqualitywasher______:shestuckwithmisguidedpolicies
Recently,moreandmorefoodscandalssuchaspoisonousmilkpowerandilleg
Fallinginlovecomesatthecostoflosingclosefriends,becauseromantic
有关月经初潮知识,不正确的是A.月经第一次来潮称月经初潮 B.月经初潮年龄多在
期货交易的主要制度有( )。A.持仓限额制度 B.强行平仓制度 C.
以下程序求两个整数M,N的最大公约数: SUBROUTINEZDGUS(M,
横担安装位置要求包括( )。A.10kV及以下直线杆的单横担应安装在负荷侧
A公司中标承建城市地铁第二标段,其中包含一段隧道和一个车站,车站基础全长220m
机械设备安装准备工作关系到工程质量好坏、施工速度快慢等,准备工作主要包括(
最新回复
(
0
)