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
A、It doesn’t work as expected. B、It can do harm to children. C、It can find out serious injuries. D、It can provide detailed image
A、It doesn’t work as expected. B、It can do harm to children. C、It can find out serious injuries. D、It can provide detailed image
admin
2013-11-18
32
问题
The injury to the brain caused by a blow happens when the brain is shaken, often in a car crash or a fall or a strike to the head in sports. It can be mild, but doctors may order a CT scan to look for a more serious injury. Computed X-rays provides a detailed image of the brain. But a recent study warned that more children than necessary are being exposed to radiation this way. A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries. They found that in many cases, the risk of developing cancer from the radiation outweighed the risk of a serious brain injury. The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under age two. The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is: normal mental activity, no swelling in the back of the head, no feeling of a broken bone in the skull, and no loss of consciousness for more than five seconds. Doctors should also consider how the child was injured and whether the parents say the child is acting normally. For patients from two to 18, the guidelines are similar—except there should be no loss of consciousness, no vomiting and no severe headache.
19. What’s the new discovery about CT scan?
20. What did the national team find after studying records about children with head injuries?
21. When can a child be given a scan?
选项
A、It doesn’t work as expected.
B、It can do harm to children.
C、It can find out serious injuries.
D、It can provide detailed image of the brain.
答案
B
解析
推理判断题。短文开始部分提到,当脑部受伤后,医生会要求做CT检查以检测更加严重的伤势。X线扫描可以提供大脑的详细图像。但是一项近期研究警告称,许多儿童会因此被置于不必要的辐射中。由此可以推断,做CT检查对儿童有害。
转载请注明原文地址:https://jikaoti.com/ti/RfCFFFFM
0
大学英语四级
相关试题推荐
Hewenttothenewshoppingmall,and____________(以八折的价钱买了一套衣服).
OnMarchI,areader’sletterpublishedinLianheZaobao’sForumpagewiththeheadline"FeedbackfromReadersTakenSeriously"
A、GiveJackadifferentoffice.B、Complaintothedepartmenthead.C、Movethesuppliestothestorageroom.D、Trytogetaroom
A、NextThursday.B、NextTuesday.C、Thisweekend.D、Tomorrownight.B原文再现。对话开始就有问有答,直接对应19题和选项B)。
A、hedidn’tworkashardashewassupposedto.B、Hedidn’tpassthephysicsexam.C、Hedidbetterinanearlierexam.D、hefoun
Inanexperimentpublishedlastmonth,researchersfromtheUniversityofIllinoisrecruitedschoolchildren,ages9and10anda
Whatdodietingandenergypolicyhaveincommon?TheSnackWelleffect.Thenamecomesfromthosetastylittlecookiesthatare【
A、Itweakenedtheireggshells.B、Itpoisonedtheirhabitat.C、Itkilledthemdirectly.D、Itkilledallthefishtheyfeedon.A短
Americanshavelongpridedthemselvesasbeingpartofanoptimisticsociety.ButanewresearchdescribesAmericansaspessimis
Americanshavelongpridedthemselvesasbeingpartofanoptimisticsociety.ButanewresearchdescribesAmericansaspessimis
随机试题
属于精神运动性障碍的是()
下列技术类型中,集权程度比较高的是()。
患者,男,50岁。昨日起憎寒壮热,头项强痛,肢体酸痛,无汗,鼻塞声重,咳嗽有痰,胸膈痞闷。舌淡苔白,脉浮而按之无力。治宜选用()
甲股份有限责任公司(以下简称“甲公司”)为上市公司,发生以下交易:(1)2014年12月20日,甲公司购进一台不需要安装的设备,设备价款为730万元,另发生运杂费2万元,专业人员服务费23万元,款项均以银行存款支付;没有发生其他相关税费。该设备于当日
我国的类书始创于()。
其教学法被称作“产婆术”的教育家是()。
机能主义心理学的创始人是()
“要尽量多地要求一个人,也要尽可能地尊重一个人”体现了马卡连柯的
通常,小规模网络可以使用()IP地址。
Ifnooneobjects,Mr.Benwillbethenextchairman.
最新回复
(
0
)