首页
登录
职称英语
[originaltext] The injury to the brain caused by a blow happens when the bra
[originaltext] The injury to the brain caused by a blow happens when the bra
游客
2023-06-30
52
管理
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、A child aged two should receive a CT scan even if he has no broken bones.
B、A child aged two should receive a CT scan if he has severe headache.
C、A child aged eight should receive a CT scan even if he has consciousness.
D、A child aged eight should receive a CT scan if he has slight headache.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2796100.html
相关试题推荐
[originaltext]W:So,(8)whyexactlydoesyourjobhaveareputationforbeingst
[originaltext]W:So,(8)whyexactlydoesyourjobhaveareputationforbeingst
[originaltext]MostkindsofroseplantscomefromAsia.Butrosesarealso
[originaltext](3)Youlearninsciencethatblackholesformedwhenstarsc
[originaltext](3)Youlearninsciencethatblackholesformedwhenstarsc
[originaltext](22)Moroccogetsmorethanahalfofitsenergyfromcoal.B
[originaltext](22)Moroccogetsmorethanahalfofitsenergyfromcoal.B
[originaltext](19)Attractingandfeedingwildbirdsareentertainingactiv
[originaltext](19)Attractingandfeedingwildbirdsareentertainingactiv
[originaltext]It’slogicaltosupposethatthingslikegoodlaborrelations
随机试题
[originaltext]Howmuchwatershouldyoudrinkeachday?It’sasimplequest
早年的艰辛生活磨炼了范仲淹坚忍不拔的毅力和不计利害得失、心怀天下的胸襟。他一生仕途坎坷,几度遭贬。他的朋友藤子京被贬岳州(今湖南岳阳),重修岳阳楼,写信
【S1】[br]【S2】K动词辨义题[考频:11]。空格处单词位于副词probably之后,名词instincts之前,因此缺少动词,直接宾语为instin
给水排水管道地基因排水不良被扰动时,扰动深度为300mm以内,但下部坚硬时,可回
根据工作需求,某省需要编制一张1︰800000《××省地图》,全面表示该省区域范
机载侧视雷达方位分辨率的方向与飞行方向的关系为( )。A.垂直于飞行方向 B
Thechangeinthatvillagewasmiraculou
阅读下面材料,回答问题。 我是一名初三的学生,我们现在不知该怎样面对我们的班主
与调节水、钠代谢有关的激素有A.雌激素 B.醛固酮 C.糖皮质激素 D.
当建设项目为一个单项工程时,其设计概算应采用的编制形式是( )。 A.单位工
最新回复
(
0
)