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
The bypass operation (心脏搭桥手术)【C1】______ open-heart surgery in which the physician takes a vein from the patient’s leg and【C2】___
The bypass operation (心脏搭桥手术)【C1】______ open-heart surgery in which the physician takes a vein from the patient’s leg and【C2】___
admin
2010-01-15
50
问题
The bypass operation (心脏搭桥手术)【C1】______ open-heart surgery in which the physician takes a vein from the patient’s leg and【C2】______ it near the heart to construct a【C3】______ around the blockage in a clogged artery【C4】______ blood can flow freely by. The operation is performed【C5】______ about 100,000 persons a year in the U.S. and costs【C6】______ $10,000. The procedure is
designed to relieve the pain of angina pectoris (心绞痛)which occurs when the blood supply is【C7】______ and also to【C8】______ the patient more freedom of sustained activity.
In those with advanced heart disease and blockage in several arteries, the bypass operation is considered by most doctors 【C9】______ the 【C10】______ means of prolonging life. 【C11】______ those with a less advanced disease, or when only one artery is involved, the advisability of the procedure is【C12】______ more controversial. The operation doesn’t cure the disease that caused the blocked artery【C13】______ the first place. According to some studies,【C14】______ around half of the patients who have had the bypass to relieve one artery will have another blocked artery within five years and in some cases even within one year.
There is of course a【C15】______ rate in any major operation, which【C16】______ from physician to physician and hospital to hospital. The threat to the patient is greatly increased if he is【C17】______ generally poor condition, very advanced in age, or suffering from some serious or debilitating illness. It is essential that the operation【C18】______ by a skilled surgeon knowledgeable【C19】______ this particular technique and in a hospital with the best possible【C20】______ for his use.
【C16】
选项
A、transfers
B、varies
C、diversify
D、ranges
答案
B
解析
考查词义辨析。vary表示“变化,不同”,指的是不规则的变化;diversify是“多样性”的意思;range意为“(在一定幅度或范围内)变化,变动”,常用于range from... to...,其中from...to...表示的是变化的范围或幅度;transfer意为“转移,移动”。这里vary为最佳选项,指的是大手术的死亡率因医生和医院的不同而不同。
转载请注明原文地址:https://kaotiyun.com/show/gWnK777K
0
专业英语四级
相关试题推荐
ThemostimportantthingnowisforDemocratsnottopanic.Despitewhatyourgutistellingyou,thisisnottheendofthewor
PassageOneExplainthemeaningof"liveuptotheirhype"accordingtothecontext(Para.2).
PassageOne(1)GabrielOakwasasensiblemanofgoodcharacter,whohadbeenbroughtupbyhisfatherasashepherd,and
Supermarkets,retailersanddrinkscompaniesshouldbeforcedtopaysignificantlymoretowardstherecyclingoftheplasticpa
Throughoutthenation’smorethan15,000schooldistricts,widelydifferingapproachestoteachingscienceandmathhaveemerge
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Thereseemsnevertohavebeenacivilizationwithouttoys,butwhenandhowtheydevelopedisunknown.Theyprobablycameabout
Thewould-besleeperwhorefightshisdailybattlesinbed——orrehearsestomorrow’sproblems——findsithardtofallasleep.Then
Asinglestatusmayhavemultiplerolesattachedtoit,constitutingaroleset.Considerthestatusofapatientinahospital.
Thetranslatormusthaveanexcellent,up-to-dateknowledgeofhissourcelanguages,fullfacilityinthehandlingofhistarget
随机试题
本案中,应当就该批化工原料在运输途中的风险投保的是()该化工原料被水浸泡的风险应当由()承担
关于土地权属争议的调解书及其效力叙述正确的是()。
行政复议机关责令被申请人重新作出具体行政行为的,被申请人应当在法律、法规、规章规定的期限内重新作出具体行政行为;法律、法规、规章未规定期限的,重新作出具体行政行为的期限为()。(2008年)
家里的白炽灯用久了会发黑,是因为()。
求一个正交变换,化二次型f=x12+4x22+4x32-4x1x2-8x2x3,为标准形.
IPv4地址和IPv6地址的位数分别为()。
一个字长为6位的无符号二进制数能表示的十进制数值范围是()。
Itwasabout600years______thatthefirstclockwasmade.
Wheredoesthisconversationmostlikelytakeplace?
Googlerecentlyintroducedanewservicethataddssocial-networkingfeaturestoitspopularGmailsystem.Theserviceiscalled
最新回复
(
0
)