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
The amount of sleep a human being needs depends on【C1】______ , the individual and possibly race. For example, doctors think that
The amount of sleep a human being needs depends on【C1】______ , the individual and possibly race. For example, doctors think that
admin
2014-09-24
84
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.
【C9】
选项
A、otherwise
B、or
C、so
D、yet
答案
B
解析
这里的三个句子是并列的分句,句子与句子表示选择的关系,因此应选择B项or(或者)。A项otherwise表示"否则",用在空格中意思明显不对,C项so表示原因,D项yet表示转折,也与句意不符。
转载请注明原文地址:https://kaotiyun.com/show/tRWO777K
0
在职攻硕英语联考
相关试题推荐
Theyconsidertheneedofindividualssubordinatedtothatofthecommunity.
Peoplewhosmoketoomuchareapparentlyatriskofdisease.
Morethan1billionpeoplemustsurviveonlessthan$1aday.Strikinginequalitypersistswithinandamongcountries.Diseasess
Peopleweakincharacterusuallyshudderatthesightofblood.
A、Heagreeswiththewoman.B、Hewantstoinvitesomepeople.C、Hedoesn’twanttohaveaparty.D、Hedoesn’twanttoseeanyon
Freebreakfastisasmallamountofmoneywhenyouconsiderthatitcanbethedifferencebetweendoingwellinschoolorhaving
Nosehasitprettyhard,Boxersflattenthem.Doctorsrearrangethem.Peoplemakejokesabouttheirunflatteringcharacteristics
Nosehasitprettyhard,Boxersflattenthem.Doctorsrearrangethem.Peoplemakejokesabouttheirunflatteringcharacteristics
ThePonyExpressisanoutstandingexampleofcourage,endurance,anddeterminationinthewestwardexpansionoftheUnitedStat
ThePonyExpressisanoutstandingexampleofcourage,endurance,anddeterminationinthewestwardexpansionoftheUnitedStat
随机试题
异丙醇空气中允许最高浓度为
若休克患者CVP3cmH2O,血压50/30mmHg,提示( )
入汤剂宜先煎的药物是
纳税人将不动产或者土地使用权无偿赠与他人,其纳税义务发生的时间为()。
我国实行一级政府三级预算。()
以下不属手周期性行业的是()。
法律规范中指出适用该法律规范的条件或情况的部分的是______。
中国革命的中心问题,同时也是新民主主义革命理论的核心问题是
信息系统中,防止非法使用者盗取、破坏信息的安全措施要求:进不来、拿不走、改不了、看不懂。以下(62)技术不属于安全措施。
交换式局域网的核心部件是局域网交换机。局域网交换机可以为连接到交换机端口的多个节点之间同时建立多个
最新回复
(
0
)