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、Because they are not accustomed to it. B、Because they are not psychologically prepared for it. C、Because their genes differ fr
A、Because they are not accustomed to it. B、Because they are not psychologically prepared for it. C、Because their genes differ fr
admin
2019-09-13
84
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://kaotiyun.com/show/HHW7777K
0
大学英语六级
相关试题推荐
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecauseitcannotreceivethevisualstimulusfromitsenv
Drought,tsunami,violentcrime,financialmeltdown—theworldisfullofrisks.Thepoorareoftenmost【C1】______totheireffec
Dependingonwhichplayeryouask,the"Fevernova"ballthatsportsequipmentmakerAdidassaysprovidestheultimatesoccerexp
eBay[A]eBayisaglobalphenomenon—theworld’slargestgaragesale,onlineshoppingcenter,cardealerandauctionsitewith1
AstudyconductedbyanAustralianscienceagencyhasdiscoveredsignsthatthecountry’sancientAboriginesmayhavebeenthew
ThedirectraysofthesuntouchtheequatorandstrikenorthwardtowardtitleTropicofCancer.IntheSouthernhemispherewint
A、It’satraditionalEuropeanfestival.B、ItfallsonthedaybeforeEaster.C、Thetraditionalcelebrationisdecoratingeggs.D
A、Theyhiredsomeonetostayintheirhome.B、Theylefttheirpetswiththeirneighbors.C、Theyrentedtheirhousetoastudent.
A、Onethird.B、Almosttwothirds.C、Morethantwothirds.D、Almosthalf.B
A、Putmoregirlsinprimaryschool.B、Setupmorecommunityprograms.C、Tellgirlstheimportanceofeducation.D、Workwithnati
随机试题
相对分子质量是指()。
设,则()
胸膜摩擦音的特点,不正确的是
创伤一期愈合的临床特点是()
A公司将该土地使用权抵押给B建行,办理抵押登记时,除提交抵押当事人的法人资格证明、抵押登记申请书外,还需提交()等必备文件。拍卖该商场后,其拍卖价款的分配顺序为()。
某银行2006年的银行资本为1000亿元,计划2007年注入100亿元资本,若电子行业在资本分配中的权重为5%,则以资本表示的电子行业限额为()亿元。
综合反映商业银行在一定时期利润实现和亏损的实际情况的报表是()。
下列税种中,采用比例税率征收的有()。
若销售量增长5%,零售价格增长2%,则商品销售额增长()。
时分多路通信是指各路信号在信道上占有不同时间间隔进行通信。()
最新回复
(
0
)