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、Many children suffer greatly from brain injury. B、Many children are threatened by lung cancer. C、Children suffer more from bra
A、Many children suffer greatly from brain injury. B、Many children are threatened by lung cancer. C、Children suffer more from bra
admin
2016-09-08
29
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.(23)But a recent study warned that more children than necessary are being exposed to radiation in 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.(24)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.(25)For patients from two to eighteen, the guidelines are similar—except there should be no loss of consciousness, no vomiting and no severe headache.
23. What’s the new discovery about the CT scan?
24. What did the national team find after studying records from children with head injuries?
25. When can a child be given a CT scan?
选项
A、Many children suffer greatly from brain injury.
B、Many children are threatened by lung cancer.
C、Children suffer more from brain injury than from cancer.
D、Children have a high risk of developing cancer.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/KJY7777K
0
大学英语四级
相关试题推荐
Inmanycountries,authorityisseldomquestioned,eitherbecauseitishighlyrespected,orbecauseitis【B1】_______.Sometimes
Inmanycountries,authorityisseldomquestioned,eitherbecauseitishighlyrespected,orbecauseitis【B1】_______.Sometimes
TheArtofFriendshipA)OneeveningafewyearsagoIfoundmyselfinananxiety.Nothingwasreallywrong—myfamilyandIwer
A、Theywillexchangerings.B、Theywillexchangepresents.C、Theywillexchangepromises.D、Theywillexchangeflowers.C
A、HiredErictotakecareofthepets.B、HiredMargarettolookafterthehouse.C、AskedMr.Cohentotakecareofthechildren.
ChineseNewYearisthemostimportanttraditionalChineseholiday.InChina,itisalsoknownastheSpringFestival.NewYear
Winterinmanyplacesmeansiceskating,sleddingandsnowballfights.Butunlesssomeoneisprepared,outdoorfuncanalsomean
A、Theactorswereenthusiastic.B、Theplotwasfunnyenough.C、Itwasapplaudable.D、Itwasjustterrible.C女士说:你对演出似乎并不特别喜欢。男士回
HowtoMakeYourFridgeMoreEfficientA)Modernrefrigeratorsarefarmoreefficientthantheyusedtobe,buttheystilldrawa
A、Stupid.B、Friendly.C、Terrible.D、Considerate.A
随机试题
男性,84岁,左半结肠切除术后第一天,突发呼吸困难,心率116次/分,呼吸36次/分,口唇发绀,呈三凹样呼吸,烦躁,冷汗,血气分析pH7.32,PaO227mmHg,PaCO240mmHg,听诊右肺呼吸音明显减弱,左肺可闻少量干性啰音及轻度呼气相哮鸣音
患者,男,30岁。因车祸致右侧胸部损伤,1h后送至急诊室,诊断开放性气胸,做胸腔闭式引流治疗。护士对其进行的正确健康教育的内容是
不属于弥漫性结缔组织病范畴的疾病是( )
A.百部B.紫苑C.决明子D.桑白皮E.紫苏子可以治疗咳嗽与便秘的是
依据FIDIC《施工合同条件》规定,指定分包商的特点表现为( )。
旅客办理直达特别快车的退票手续,必须在开车2小时以前办理。()
张家口某镇居民喜食鸡肉和羊肉,近几年镇政府大力提倡发展养鸡业,市场上鸡肉应用大幅增加。假定羊肉供给未变,这会使()。①鸡肉价格下降,需求量增加;②羊肉价格上升,需求量增加;③鸡肉需求量减少,价格上升;④羊肉需求量减少,价格下降
某县农机厂金工车间共有77个工人。已知每天每个工人平均可加工甲种部件5个,或乙种部件4个,或丙种部件3个。刚好可以配套生产时,甲种部件:乙种部件:丙种部件=3:1:9。(1)加工甲、乙、丙三种部件应分别安排12人、5人和60人;(2)加
必须尊重劳动、尊重知识、尊重人才、尊重创造,这要作为党和国家的一项重大方针,其着眼点在于
A、Peoplewereconcernedaboutthenumberofbees.B、SeveralcasesofZikadiseasehadbeenidentified.C、Twomillionbeeswerei
最新回复
(
0
)