首页
登录
职称英语
[originaltext] In order for a chemical to be considered a drug, it must have
[originaltext] In order for a chemical to be considered a drug, it must have
游客
2023-08-21
60
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. 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. 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.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.
23. Under what circumstances are drugs approved?
24. Why do many people suffer side-effects from a drug even though they take it as directed?
25. What will happen when patients acquire a tolerance for a certain drug?
选项
A、They will have to take ver larger doses.
B、They will become physically impaired.
C、They will suffer from minor discomfort.
D、They will experience a very painful process.
答案
A
解析
录音提到,病人也可能会对某种药产生抗药性,这就意味着病人要加大剂量,以达到预期的药效。由此可知答案为A。
转载请注明原文地址:https://tihaiku.com/zcyy/2945962.html
相关试题推荐
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
[originaltext]PeopleinPolandtaketheirpleasureseriously.Theyliketo
[originaltext]Peopleenjoytakingtrips.Butwhatarethereasonstheyleav
[originaltext]M:Goodmorning,Ms.Smith.Welcometotoday’sshow.W:Thankyou
[originaltext]M:Goodmorning,Ms.Smith.Welcometotoday’sshow.W:Thankyou
[originaltext]M:Goodmorning,Ms.Smith.Welcometotoday’sshow.W:Thankyou
[originaltext]M:Hi,Jenny.CouldIborrowsomemoneyuntilpayday?W:Uh,yeah
[originaltext]M:Hi,Jenny.CouldIborrowsomemoneyuntilpayday?W:Uh,yeah
[originaltext]W:IthoughtAlexsaidhegotAsinallhistests.M:Laura,you
[originaltext]W:IthoughtAlexsaidhegotAsinallhistests.M:Laura,you
随机试题
[originaltext]W:Excuseme,DrTyler,yoursecretarysaidIshouldcomerighti
[originaltext]AninternationalRomanCatholicorganizationsayshumanright
Mostpeoplemanagetoreturnfromtheirholidayswithacoupleofamusinganecdo
CampusSafety1.校园安全十分重要2.因此,学校应当…3.我们自己应当…Campus
[originaltext]W:Whatsortofhoursdoyouwork,Steve?M:Well,Ihavetowork
贲门失弛缓症X线表现不正确的是A.钡餐造影时食管下端呈鸟嘴状 B.管壁柔软
关于类风湿因子的概念不正确的是A.不与正常IgG发生凝集 B.可与人或动物的变
A.115℃,30min B.80℃,1.5h C.160~170℃,2~4
发生胎膜破裂时,孕妇应采取的体位是A.半卧位 B.站位 C.俯卧位 D.平
下列有关文明工地申报的说法,正确的有()。A.申报文明工地应达全部建筑安装工程
最新回复
(
0
)