首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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 te
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 te
admin
2019-09-13
63
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://kaotiyun.com/show/XHW7777K
0
大学英语六级
相关试题推荐
InthefirstyearorsoofWebbusiness,mostoftheactionhasrevolvedaroundeffortstotaptheconsumermarket.Morerecentl
5WeekstoaStress-FreeLife[A]Whowillyoubethisyear?Willyoubeabetter,wiserversionofyourselfbythetimethecal
OfthemanyfactorsthatcontributetopoorperformanceonstandardizedtestsliketheSAT,nervesand【C1】______,surprisingly,
Baby-NamingTrends[A]Overthelastfiftyyears,Americanparentshaveradicallyincreasedthevarietyofnamestheygivetheir
TheHistoryofChineseAmericans[A]ChinesehavebeenintheUnitedStatesforalmosttwohundredyears.Infact,theChineseh
A、Theimportanceofpraise,admirationandthankyou.B、Theimportanceofaskingthingsthatweneed.C、Theimportanceoftellin
A、Studyinginaforeignenvironment.B、Livingfarawayfromfamily.C、Returningbacktohomecountry.D、Fittingintoaforeignc
Psychologiststakeopposingviewsofhow【C1】______rewards,fromwarmpraisetocoldcash,affectmotivationandcreativity.Beha
Mathematicalabilityandmusicalabilitymaynotseemonthesurfacetobeconnected,butpeoplewhohaveresearchedthesubject
A、Theybecomelighterwhenthetemperatureislow.B、Theirchemicalcompositionchangeswiththetemperature.C、Theircolordark
随机试题
InputBox函数的返回值类型是()。
IntheliteraryhistoryoftheUnitedStates,theAgeofRealismrefersto()
糖尿病人术前尿糖应控制在
DO表示COD表示
下列物质中不是细菌合成代谢产物的一种是
聚酰胺吸附法的原理是()。
设(x-1)21=a0+a1x+a2x2+…+a21x21,则a10+a11=__________.
音乐教学评价:
“低碳农业”是以“低消耗、低污染、低排放、高品质、高效益”等“三低、两高”为特征的现代农业,彻底转变农业发展方式,合理高效利用资源和能源,建立清洁能源结构和实施清洁生产,并促进能源和资源利用技术创新、制度创新和可持续发展。显然,低碳农业是低碳经济在农业发展
简述德育过程的基本规律。
最新回复
(
0
)