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
Every year more than half a million American kids have drainage(排泄) tubes surgically implanted in their ears to combat persisten
Every year more than half a million American kids have drainage(排泄) tubes surgically implanted in their ears to combat persisten
admin
2010-01-10
72
问题
Every year more than half a million American kids have drainage(排泄) tubes surgically implanted in their ears to combat persistent infections. The procedure, known as tympanostomy, may not be as 【C1】______ as the tonsillectomy was in the 1940s, but it now 【C2】______ as the nation’s leading childhood 【C3】______ and a new study suggests it’s being vastly overused. In 【C4】______ more than 6,000 scheduled ear tube operations, a team of experts 【C5】______ by Harvard pediatrician Lawrence Kleinman found that fewer than half were clearly justified. "Each year", the researchers write in the current Journal of the American Medical Association (JAMA), "several hundred thousand children in the United States may be 【C6】______ tympanostomy tubes that offer them no demonstrated 【C7】______ ...and may place them at increased 【C8】______ ."
Tube placement isn’t a 【C9】______ risky procedure, but it costs $1,000 to $1,500 and sometimes scars the eardrum, causing a partial loss of 【C10】______ Studies show that the benefits are most likely to 【C11】______ the risks if a child’s middle ear has produced sticky fluid 【C12】______ more than four months despite treatment 【C13】______ antibiotics. For less virulent infections, drug treatment is usually a(n) 【C14】______ safer alternative (though drugs, too, can be overused). In the new JAMA study, Kleinman’s team reviewed the medical charts of 6,429 kids, all under 16, 【C15】______ doctors had recommended the procedure. Even making "generous assumptions" about the likely 【C16】______ , the researchers found that a quarter of the proposed operations were 【C17】______ , since less invasive alternatives were available, 【C18】______ another third were as likely to harm the recipients as help them.
Parents needn’t 【C19】______ about ear tubes that are already in place. Once 【C20】______ implanted, the tiny devices provide drainage for six months to a year, then come out by reducing health costs by hundreds of millions of dollars every year.
【C8】
选项
A、bottom
B、risk
C、edge
D、extent
答案
B
解析
词义辨析题,同上题分析,这种手术不仅对他们没什么好处,还可能增加他们的风险,所以B正确,edge意为“边缘;优势”
转载请注明原文地址:https://kaotiyun.com/show/FXt7777K
0
大学英语四级
相关试题推荐
Researchintothematerialcultureofanationisofgreatimportancebecause______.Itcanbeconcludedfromthepassagethat
Ifsomeoneyoudon’tknowissaidtobeahero,you’resurewhatkindofthinghehasdone.Accordingtotheauthor,parentssh
_________________(虽然两位网球选手场上是对手),theyaretearygoodfriends.
Nodirectrelationshiphasbeenprovenbetweenhighcholesterollevelsandheartattacks.Childrenshouldlearnmoreresponsibi
A、Planningholidays.B、Workinginatravelagency.C、Travelingalone.D、FlyingtoNewYork.AW:Ifyouhaven’tyetdecidedonyo
Theproblemwiththereadingcourseasmentionedinthefirstparagraphisthat______.Themainideaofthepassageisthat__
A、Thelongerpeoplelive,thefewerheartattackspeoplewillmeet.B、Thenumberofheartattacksisdecreasing.C、Thereisnoe
A、Helpingafriendfindtherightdepartment.B、Buyinghimselfsomeshoes.C、Takingaclassatthegymnasium.D、Returningapair
A、Gotothelibrary.B、Getsomeexercise.C、Gotoseeafilm.D、Doschoolworkathome.CM:I’dreallyliketogotothecinemat
AsyoumakeyourwaythroughthecrowdedstallsofBeijing’sfoodmarketsnowadays,youmaysometimesbeconfusedastojustwha
随机试题
以下属于学生的义务的是()。
教育预测中用来反映教育系统能否成功地完成预期目标的质量指标是()
易阻遏气机,损伤阳气的病邪是
《药品经营质量管理规范》规定,对药品零售企业陈列药品的要求是()
消费支出规划涉及的内容不包括()。[2009年11月二级真题]
根据《期货公司风险监督指标管理试行办法》,期货公司的风险监管指标包括()。[2010年9月真题]
位于县城的某筷子生产企业系增值税一般纳税人,2008年4月份发生以下业务:(1)月初进口一批优质红木用于生产红木工艺筷子,成交价折合人民币20万元,另向境外支付包装材料和包装劳务费用合计折合人民币1万元,支付运抵我国海关前的运杂费和保险费折合人民币2万元
劳动安全卫生管理制度的种类包括()。(2008年5月二级真题)
根据给出的表格资料,回答下列问题。
VB变量x!的数据类型是
最新回复
(
0
)