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
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphe
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphe
admin
2013-02-24
54
问题
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts 【C1】______ our protective blanket on 【C2】______ . Light gets through, and this is essential 【C3】______ plants to make the food which we 【C4】______ . Heat, 【C5】______ , makes our environments tolerable and some ultraviolet rays (紫外线) penetrate the 【C6】______ . Cosmic (宇宙的) rays of various kinds come 【C7】______ the air from outer space, but 【C8】______ quantities of radiation from the sun are screened off. As 【C9】______ as men leave the atmosphere they are 【C10】______ to this radiation; 【C11】______ their spacesuits or the walls of their spacecraft, if they are inside, 【C12】______ prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in 【C13】______ . Doses of radiation are measured in 【C14】______ called "rems (雷姆)". We all 【C15】______ radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The" 【C16】______ "dose of radiation that we receive each year is about 100 millirems; it 【C17】______ according to where you live, and this is a very rough estimate. Scientists have reason to think 【C18】______ a man can 【C19】______ up with far more radiation
【C20】______ this without being damaged; the figure of (60) rems has been agreed.
【C12】
选项
A、get
B、make
C、have
D、do
答案
D
解析
逻辑衔接题,空格所在句的主干为their spacesuits or the walls of their spacecraft prevent,可见该句并不缺少谓语,故排除A、B、C三项,而“助动词do+ 动词原形”刚好用于强调谓语动词,所以D正确
转载请注明原文地址:https://kaotiyun.com/show/Uju7777K
0
大学英语四级
相关试题推荐
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
Internetdatashowsthatyoungeradultshavebecometheprimaryaudienceobsessed(着迷)withalteringtheirpersonalappearance.
Internetdatashowsthatyoungeradultshavebecometheprimaryaudienceobsessed(着迷)withalteringtheirpersonalappearance.
A、Themancanaskherforhelp.B、Theman’sunclewon’thelphimatall.C、Theman’suncleisakind-heartedperson.D、Themanc
StepstoMoreHappinessTurningPointsThereis,formanyofus,amomentinlifewhenwemakeachoicethatchangesusfore
StepstoMoreHappinessTurningPointsThereis,formanyofus,amomentinlifewhenwemakeachoicethatchangesusfore
AsanotheractivehurricaneseasonintheAtlanticwindsdown,someatmosphericscientistssaytheyhavethetoolstostoporsl
A、Itisveryimpressive.B、Itisanamethatbringshergoodluck.C、Itdoesnotexpressherpersonality.D、Itsoundsverybeaut
随机试题
脊髓外伤造成病人下肢丧失随意运动功能,从生理学角度看,原因是损伤了
张某,车祸全身多处骨折,需急送医院,搬运时宜用
女性,40岁,5年来患关节炎,日光过敏,脱发,尿蛋白(++++)。近1个月双下肢可凹性浮肿,尿少,血压168/100mmHg。尿蛋白(++),尿红细胞10~15/HP,Hb100g/L,Set230μmol/L,ANA1:640(膜型),抗Sm抗体阳性,最
患者,女,产后不久,低热,头晕眼花,疲乏无力,面色无华,心悸眠差,唇甲色淡,舌质淡,脉细弱。证属
负责组织检查医疗卫生机构的药品不良反应报告和监测工作的开展情况的部门是负责对已确认发生严重不良反应的药品,采取紧急控制措施,并依法作出行政处理决定的部门是
按成桩方法分,以下属于非挤土桩的是()。
下列关于基金职业道德修养的说法中,错误的是()。
企业应当按照交易或事项的经济实质进行会计核算,而不应当仅按照它的法律形式作会计核算的依据。这是会计核算一般原则中的()原则。
某中外合资家电生产企业为增值税一般纳税人,2019年发生以下业务:(1)销售A产品25000台,每台不含税单价2000元,每台销售成本1500元。(2)2019年6月至12月将自用房产出租,取得不含税租金收入300万元,企业选择一般计税方法。出租的房产
物业管理投诉处理的程序是()。①记录投诉内容;②判定投诉性质;③调查分析投诉原因;④确定处理责任人;⑤总结经验,改善服务;
最新回复
(
0
)