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
How to Do Fewer, Better Animal Experiments For a nation of pet lovers, Britain conducts a surprising number of experiments o
How to Do Fewer, Better Animal Experiments For a nation of pet lovers, Britain conducts a surprising number of experiments o
admin
2012-05-18
91
问题
How to Do Fewer, Better Animal Experiments
For a nation of pet lovers, Britain conducts a surprising number of experiments on animals some 3 million a year. America appears to use fewer animals—just 1.1 million a year, according to official statistics, but that is an illusion. Unlike Britain’s government, American does not think rats and mice worth counting. Japan and China have even less comprehensive data than America, and animals used in research in those two countries are not protected to the same extent that they are in the West. Even so, academic centers supporting alternatives to animal testing have emerged in both places in recent years. In July China issued its first set of guidelines governing the use of animals in research.
In an ideal world, there would be no animal testing. It is expensive and can be of dubious scientific value, since different species often react differently to the same procedure. That is why many researchers are working on ways of reducing the number of animal experiments needed and of making those that still happen more effective. However, the transition is proved easier for some types of experiments than for others, as a group of researchers in the field discussed at the sixth World Congress on Alternatives and Animal Use in the Life Sciences, held last week in Tokyo.
The most important message from the congress was that things are going in the right direction. The number of animals used in experiments has fallen by half in the past 30 years, at least in those countries that record such things. There has also been a shift in the sort of animals used. Most of those employed today are rodents rather than dogs, cats, rabbits and monkeys. (That public opinion generally welcomes, this is, however, a good example of "cutist" prejudice for one specy over another: there is no reason to believe that rodents suffer less than other mammals.) Also, of the experiments that are still conducted, the majority are now concerned with developing and testing medicine rather than, say, checking how toxic cosmetics are. Of the animals involved each year in experiments that have to be reported to the European Commission, about 45% are used for medical and veterinary purposes and another 35% for basic biomedical research.
Many researchers are currently trying to____.
选项
A、use animals involved in research more effectively
B、slow down the transition for some experiments
C、challenge the scientific value of animal testing
D、raise the cost of using any animals in research
答案
A
解析
题目问:很多研究者正试图干什么?通过阅读文章可知,由于不同的物种对相同的程序会有不同的反应,所以,一些研究者正试图减少试验用动物的数量,并提高试验用动物的效用。第二段“That is why many researchers are working on ways of reducing the number of animal experiments needed and of making those that still happen more effective.”所以,答案是A。
转载请注明原文地址:https://kaotiyun.com/show/WPnO777K
0
考博英语
相关试题推荐
Between1883and1837,thepublishersofa"pennypress"provedthatalow-pricedpaper,editedtointerestordinarypeople,cou
Themosteffectiveattacksagainstglobalizationareusuallynotthoserelatedtoeconomics.Instead,theyaresocial,ethicala
Thecomputercan______storedinformationinamatterofminutes.
Engineeringstudentsaresupposedtobeexamplesofpracticalityandrationality,butwhenitcomestomycollegeeducationIam
Whilethereisnoagencywithamissiontodepresstheeconomyor______inflation,manygovernmentactions—especiallytaxation,
Keysshouldneverbehiddenaroundthehousesincethieves______knowwheretolook.
Itisnotforbiddentodreamofbuildingabetterworld,whichisbyandlargewhatthesocialsciencestrytohelpustodo.Ho
Theyadmittedthattheysharedthesame______onthematter.
Thereisnoelectricityagain.Hasthe______blownthen?
Thereseemedlittlehopethattheexplorer,______inthetropicalforest,wouldfindhiswayout.
随机试题
A.呼吸性窦性心律不齐B.非呼吸性窦性心律不齐C.室性时相性窦性心律不齐D.窦房结内游走性心律E.窦房结-心房游走性心律吸气时心率加快,呼气时心率减慢,屏气时窦性心律不齐消失,应诊断为
不宜制成胶囊剂的药物为
A.监督抽验B.复验C.评价抽验D.指定检验药品上市销售前需要经指定的药品检验机构进行的检验,属于
确立美国的违宪审查制度的案件是?()
将放大倍数为1,输入电阻为100Ω,输出电阻为50Ω的射极输出器插接在信号源(uS,RS)与负载(RL)之间,形成图b)电路,与图a)电路相比,负载电压的有效值:
有关桥梁工程检验试验说法错误的是()。
海运货物保险基本险的责任期限,在保险实务中通常被称为()条款。
一般资料:求助者,男性,47岁,博士研究生,海归学者,某公司高级管理人员。案例介绍:求助者在某航空公司航班失事后,对乘飞机非常恐惧,已经影响了工作与生活,为此非常困恼,主动前来咨询。下面是心理咨询师与该求助者的一段咨询对话:心
信息加工学习理论认为学生的学习是一个信息加工的过程。信息是经__________形式储存在长时记忆中的。
嗅觉只适宜那些具有挥发性的刺激,是因为()
最新回复
(
0
)