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 a detailed ima
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 a detailed ima
admin
2017-01-20
58
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 provide a detailed image of the brain.(20-1)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.(20-2)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.(21-1)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.(21-2)For patients from two to eighteen, the guidelines are similar—except there should be no loss of consciousness, no vomiting and no severe headache.
Questions 20 to 22 are based on the passage you have just heard.
20. What’s the new discovery about the CT scan?
21. Which of the following statements about a child having a head injury is TRUE?
22. What is the passage mainly about?
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 a detailed image of the brain.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/LQi7777K
0
大学英语四级
相关试题推荐
TheSeriousRisksofRushingNewTeacherEvaluationSystemsA)Oneoftheprimarypolicyreformsnowbeingemployedinstatesand
Smalldogsgenerallylivelongerthanbigdogs.Butbodysizeisn’ttheonlyfactorthatdetermineshowlongdogssurvive.Perso
Smalldogsgenerallylivelongerthanbigdogs.Butbodysizeisn’ttheonlyfactorthatdetermineshowlongdogssurvive.Perso
Whatdostudentsthinkofe-textbooks?AdministratorsatNorthwestMissouriStateUniversitywantedto【B1】______.Earlierthisy
Whatdostudentsthinkofe-textbooks?AdministratorsatNorthwestMissouriStateUniversitywantedto【B1】______.Earlierthisy
Genetics,thestudyofgenes,isgainingincreasingimportance.Genescan【B1】______manythings,fromwhomwelookliketowhat
Genetics,thestudyofgenes,isgainingincreasingimportance.Genescan【B1】______manythings,fromwhomwelookliketowhat
A、Hehasapainintheneck.B、Helistenstomusicwhilesleeping.C、Hecareslittleaboutotherpeople.D、Heisfedupwiththe
A、Heplanstobuyanewapartment.B、HeislongingtospendhisholidayinFrance.C、Hewantstogofishingduringtheholiday.
A、Theycaredmoreaboutclothingthanwhite-collarworkers.B、Theyweremanipulatedbywhite-collarworkers.C、Theyscoffedwhit
随机试题
一份公文的文种要与该份公文的——相互呼应()
龟甲入汤剂应当
国家环境保护总局颁布的《建设项目评价资格证书管理办法》对评价单位有下列()行为,也作出处理规定。
设计水工建筑物时,首先计算建筑物上承受的荷载,然后进行荷载组合。在下列荷载中,()是可变作用荷载。
国际重复征税的免除,包括()。
导游员被一次扣分达到10分,参加年审时应()。
下列表述中不正确的是()。
大连人直面历史,表现出了应有的________,采取了极为________的做法,他们没有“砸碎一个旧世界,建立一个新世界”,而是完好的保留了那些欧式建筑、广场和绿地。依次填入画横线部分最恰当的一项是()。
《送杜少府之任蜀州》是著名送别诗,其作者是“初唐四杰”之一的______。
WhoisMs.Stevens?
最新回复
(
0
)