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
There is a great deal of controversy within the medical profession regarding the use and value of the coronary bypass procedure,
There is a great deal of controversy within the medical profession regarding the use and value of the coronary bypass procedure,
admin
2010-07-06
46
问题
There is a great deal of controversy within the medical profession regarding the use and value of the coronary bypass procedure, and for more than eight years the American Heart Association has discussed the question at its regular scientific sessions.
The bypass operation consists of open heart surgery in which the physician takes a vein from the patient’s leg and implants it near the heart to construct a passage around the blockage in a clogged artery so that blood can flow freely by. The operation performed on about 100,000 persons a year in the US and costs approximately $10,000. The procedure is designed to relieve tie pain of angina pectoris which occurs when the blood supply’s obstructed and also to allow the patient more freedom of sustained activity.
In persons with advanced heart disease and blockage in several arteries, the bypass operation is considered by most doctors to be the preferable means of prolonging life. In the case of those with a less advanced disease, or where only one artery is involved, the advisability of the procedure is much more controversial. The operation doesn’t cure the disease that caused the blocked artery
in the first place. According to some studies, somewhere around half of the patients have another blocked artery within five years, and in some cases even within one year.
There is of course a mortality rate in any major operation which varies from physician to physician and hospital to hospital. The danger to the patient is greatly increased if he is in generally poor condition, very advanced in age, or suffering from some serious or debilitating illness. It is essential that the operation be performed by a skilled surgeon knowledgeable about this particular technique and in a hospital with the best possible facilities for his use.
It is better that the bypass operation be performed______.
选项
A、by a skilled surgeon
B、in a hospital with good facilities
C、while the patient is not suffering from other serious illnesses
D、when the patient is in very poor health condition
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/6bDd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
EmployeesoftheTaffValeRailwayCompanyinSouthWalesgreasedthetracksandcuttelegraphwiresduringabitterstrikein1
YouwillhearaninterviewwithMikeRowe,hostoftheAmericanTVshowDirtyJobs.Asyoulisten,answerthequestionsorcompl
Supermarketshoppershaveneverbeenmorespoiltforchoice.Butjustwhenwethoughttraditionalsystemsofselectivefarmingh
Whatdoesthespeakersuggestthatthestudentsshoulddoduringtheterm?
Supermarketshoppershaveneverbeenmorespoiltforchoice.Butjustwhenwethoughttraditionalsystemsofselectivefarmingh
RecentsurveysshowthatJapaneseyouthhavebecomea"MeGeneration"thatrejectstraditionalvalues."Around1980manyJap
ManyAmericansfindsilenceuncomfortableduringabuffetoraformaldinner.【C1】______intheStatesthereisthe【C2】______
Aconsumerwalksintoastore.Hestandsinfrontofhundredsofboxesoflaundrydetergent.Hechoosesonebrand,paysforit,
Manyofthemostdamagingandlife-threateningtypesofweather--torrentialrains,severethunderstorms,andtornadoes--beginqu
Americanschoosetheirpresidentonthe______.
随机试题
36岁,女,突发上腹剧痛,伴冷汗,呕吐,持续30分钟逐渐缓解,可能的诊断是
带下病可分为水肿病可分为
患者,女,45岁。患类风湿关节炎,自诉最近晨僵较严重,下列缓解晨僵的护理措施中正确的是
林某利用出境旅游之机,逃避海关监管,一次性从南非携带黄金1000克入境,在北京海关进行检查时被当场发现,林某构成何种罪名?()
图(a)所示电路中,运算放大器输出电压的极限值+UOM。当输入电压ui1=1V,ui2=2sinωtV时,输出电压波形如图(b)所示,那么,如果将ui1从1V调至1.5V,将会使输出电压的()。
位于县城的某石油企业为增值税一般纳税人,2014年3月发生以下业务:(1)进口原油5000吨,支付买价2000万元、运抵我国境内输入地点起卸前的运输费用60万元,保险费无法确定。(2)开采原油9000吨,其中当月销售6000吨,取得不含
JoeSimpsonandSimonYateswerethefirstpeopletoclimbtheWestFaceoftheSiulaGrandeintheAndesmountains.Theyreache
每秒执行一百万条浮点指令的速度单位的英文缩写是上【】。
P2P网络存在集中式、___________、分布式结构化和混合式结构化4种主要结构类型。
在窗体上画一个名称为Text1的文本框和一个名称为Command1的命令按钮,然后编写如下事件过程: PrivateSubCommand1_Click() Dimarray1(10,10)AsInteger DimiAsInte
最新回复
(
0
)