首页
登录
职称英语
The amount of sleep a human being needs depends on【C1】______ , the individua
The amount of sleep a human being needs depends on【C1】______ , the individua
游客
2025-03-20
4
管理
问题
The amount of sleep a human being needs depends on【C1】______ , the individual and possibly race. For example, doctors think that pre-school children need between 10 and 12 hours a night; school children between 9 and 11 hours; and adults between 7 and 9 hours. There are exceptional【C2】______ of old people who only sleep between 2 and 3 hours a day and continue to be active and healthy. The sleep requirements of different【C3】______ also appear to be different. Japanese people, for example, sleep fewer hours than Europeans.
It is not known for【C4】______ if mental activity(apart from dreaming)occurs when a person is asleep.【C5】______ , it is certainly true that some people can wake up at a specific, predetermined time. There are also【C6】______ about mathematicians who solve difficult problems during sleep, because their【C7】______ minds continue working on the problem.
Some types of unpleasant dreams(or "nightmares")are quite【C8】______ ; the dreamer is taking a test, but is not properly prepared; he is falling from a tree;【C9】______ an animal or thing is chasing him. Some people say these last two occur【C10】______ man’s ancestors lived in trees and were in constant danger from wild animals. [br] 【C3】
选项
A、places
B、countries
C、people
D、races
答案
D
解析
根据本段主题句提到的内容,再根据下文有关日本人睡眠时间比欧洲人少这一例子,可以推断,空格中应填入D项races(种族)。本句实际上是对主题句中第三点即race的阐述。A、B、C三项均与主题句的内容不符。
转载请注明原文地址:https://tihaiku.com/zcyy/4005632.html
相关试题推荐
Thenormalfood______ofmandependinpartontheamountofexternalworkhedoe
Theamountofsleepahumanbeingneedsdependson【C1】______,theindividua
Theamountofsleepahumanbeingneedsdependson【C1】______,theindividua
Theamountofsleepahumanbeingneedsdependson【C1】______,theindividua
Theamountofsleepahumanbeingneedsdependson【C1】______,theindividua
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
随机试题
【31】[br]【36】[originaltext]Lecturer:Intoday’slectureI’dliketolooka
Ifsustainablecompetitiveadvantagedependsonworkforce,skills,American
[originaltext]Hello,everyone.Ifeelhappytobehere.Thereisanoldsay
下列关于电路元件的描述错误的是()。A.在任何时刻,线性电阻的电压是由同一时刻
根据《证券投资基金法》关于基金份额持有人大会日常机构的规定,以下选项错误的是(
秦朝时日常文书来往通用的字体是()。A.小篆 B.隶书 C.楷书
按照定员标准的综合程度,企业定员标准可分为( )。A.比例定员标准 B.
关于胜任的特征,下列说法错误的是( )A.胜任特征是可以衡量和可比较的 B.
下列说法中正确的是()。A:色觉有缺陷的人一般不能说出物体的颜色B:色觉有缺陷
平均增长速度与平均发展速度的数量关系是()。A.平均增长速度=1/平均发展速
最新回复
(
0
)