首页
登录
职称英语
Every year more than half a million American kids have drainage(排泄) tubes surgic
Every year more than half a million American kids have drainage(排泄) tubes surgic
游客
2023-07-31
19
管理
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. [br] 【C12】
选项
A、for
B、on
C、in
D、to
答案
A
解析
惯用搭配题,空格后是more than four months,四个选项都可以接表示时间的词或短语:on接表示时间点的词;in表示在将来的时间里发生;to表示到…时间;for表示一段时间,所以A正确
转载请注明原文地址:https://www.tihaiku.com/zcyy/2884079.html
相关试题推荐
[originaltext]Americansoftensaythatthereareonlytwothingsapersonc
[originaltext]Americansoftensaythatthereareonlytwothingsapersonc
【B1】[br]【B9】[originaltext]TherehavebeenalotofchangesinAmericanea
【B1】[br]【B5】[originaltext]TherehavebeenalotofchangesinAmericanea
【B1】[br]【B4】[originaltext]TherehavebeenalotofchangesinAmericanea
【B1】[br]【B3】[originaltext]TherehavebeenalotofchangesinAmericanea
TherehavebeenalotofchangesinAmericaneatinghabitsinthelastteny
BasketballisthesportandpastimetheAmericanslikemost.[br]FewAmericans
BasketballisthesportandpastimetheAmericanslikemost.[br]Becauseofthe
BasketballisthesportandpastimetheAmericanslikemost.[br]Duringhunting
随机试题
Themodernworldcouldnotoperatewithoutroads.Itisawayoflifewith
公共关系社团的类型包括()。A.综合型社团 B.学术型社团 C.行业型社团
图示圆轴抗扭截面模量为Wt,剪切模量为G,扭转变形后,圆轴表面A点处截取的单元体
A.胸骨左缘2~3肋间收缩期、舒张期连续性机器样杂音,向颈部传导,伴震颤,肺动脉
口测法体温的正常范围是A.36.0~37.0℃ B.36.3~37.2℃ C
项目法人应当组织编制保证安全生产的措施方案,并自工程开工之日起()个工作日内报有
中国证监会在初审过程中,就发行人的投资项目是否符合政府产业政策不应征求()的意见
关于爱情,错误的说法是()。单选(A)具有浪漫色彩 (B)是一种高级情感
与银汞合金充填比较铸造嵌体的优点是()A.机械性能优良 B.固位好 C.边缘
惊厥性全身性癫痫持续状态静脉注射苯妥英钠时,每1~2分钟注射速度最多不应大于A、
最新回复
(
0
)