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
Throughout the world there is a shortage of human organs for transplants. In Britain, for example, 6000 people are waiting for o
Throughout the world there is a shortage of human organs for transplants. In Britain, for example, 6000 people are waiting for o
admin
2011-01-06
45
问题
Throughout the world there is a shortage of human organs for transplants. In Britain, for example, 6000 people are waiting for organs ——5000 for kidneys, and the (51) for hearts, lungs and livers. (52) , only about 1750 kidney, 500 heart and lung, and 650 liver transplants are (53) each year. And the waiting (54) increases at five percent a year. In the United States only half of the 30000 in need of organs (55) them.
Hence the great interest in animal-to-human transplants, known as xenografts or xenotransplants (from the Greek work xenos, meaning strange of foreign) (56) most scientists believe is the only long-term solution to the organ (57) . There have been attempts at xenotransplants (58) the beginning of this century but neither has been successful; the longest (59) was a 20-day-old baby called Fae, who in 1984 was (60) the heart of a baboon.
The main (61) with any organ transplant is that the immune system of the patient receiving the organ sees the transplant organ (62) an invader. The immune system therefore launches a massive attack on the invader, activating enzymes knows as complement, which attack the (63) body, eventually killing the patient as well. This rejection has been (64) when transplanting human organs between humans by the close matching of tissue and the long-term use of drugs known as immuno-suppressants, first introduced just over ten years ago. With xenotranplants, however, rejection is even more (65) ; a normal pig’s heart, for example, transfuses with human blood can be destroyed in 15 minutes.
选项
A、exchanged
B、donated
C、grown
D、given
答案
D
解析
donate意为“捐献”;此句是被动语态,省略的主语又是动物狒狒,故用given即可。
转载请注明原文地址:https://jikaoti.com/ti/xTgsFFFM
本试题收录于:
职称英语卫生类B级题库职称英语分类
0
职称英语卫生类B级
职称英语
相关试题推荐
Whenwespeakofabasichumanneed,wemeansomethingwhichisnecessarytolife,somethingthatwecannotpossiblydowithout.
1.Forsomeyears,therehasbeenaplantosolvethewatershortageproblembymovinghugeicebergshalfwayroundtheworld—f
Whatdowethinkofwhenweheartheword"business"?Someofusthinkofourjogs,othersofthemerchantstheydealwithasco
ThecathasprobablybeenassociatedwithMansinceitwasfirstgivenaplacebyhisfireinreturnforkeepingthecavedwelli
1.Distanceeducationisenrollmentandstudywithaneducationalinstitutionthatprovideslessonmaterialspreparedinaseque
Theexaminerasksyouandyourpartnerquestionsaboutyourselves.Youmaybeaskedaboutthingslike’yourhometown’,’yourin
Youseethefollowingnoticeinaninternationalmagazine.BesomeonefamousforadayIfyoucouldchangep
Weworesunhatsbecauseitwasveryhot.Itwas____________________thatweworesunhats.
NaturalMedicineSinceearliestdays,humanshaveusedsomekindsofmedicines.Weknowthisbecausehumanshavesurvived.Ancie
PlantGasScientistshavebeenstudyingnaturalsourcesofmethanefordecadesbuthadn’tregardedplantsasaproducer,not
随机试题
蛋制品配料表标示中,如果某种复合配料已有国家、行业、地方标准,并且其加入量小于食品总量的35%,可不标示复合配料的原始配料。
反射时的长短主要决定于
对某地区失业人员进行调查,得到有关失业周数、失业者年龄和受教育年限等资料,对此资料进行相关与回归分析后所得的结果如下表所示。又已知n=50,=34.6,∑Y=2168,∑X=1730,∑XY=80083,∑X2=63880。试计算与回
下列不属于系统性风险特点的是()。
2011年7月1日,人民法院裁定受理债权人甲公司的破产申请,并指定乙律师事务所担任管理人。在10月10日召开的第一次债权人会议上,管理人将甲公司的有关情况汇报如下:(1)全部财产的变现价值为2000万元。其中包括:①已作为丁银行贷款等值担保物财产价值为2
Hewasstrugglingtotiehisshoes.IwasstrugglingwithwhetherIshouldhelphim.Idid,andhewasgrateful."Thank
李某和王某两邻居素来不和。王某怀恨在心,总想寻机将李某教训一顿。王某深知李某身体瘦弱但却性情暴躁,便设计要激怒李某,让其先动手打人,自己再予以还击。某日,王某依计而行,李某果然动怒先出手打王某,王某趁机还击。谁料,李某盛怒之下随手拿起桌上的剪刀刺伤了王某的
在我们的生活经验中,我们对他人的行为已自然而然地形成各种判断,因此无须考虑就能运用在各种场合。例如我们搭乘的火车突然停下来,我们会想到可能是由于机器出了故障,绝非是驾驶员离车去摘路边的野花。对上面这段话主题理解正确的是()。
(浙江2013—45)()
Whatwillthefemalespeakerdoforthemalespeaker?
最新回复
(
0
)