首页
登录
职称英语
Space is a dangerous place, not only because of meteors (流星) but also becaus
Space is a dangerous place, not only because of meteors (流星) but also becaus
游客
2024-04-19
14
管理
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【B1】______our protective blanket on earth. Light gets through, and this is【B2】______for plants to make the food which we eat Heat, too, makes our environment【B3】______.Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are【B4】______.As soon as men leave the atmosphere they【B5】______this radiation and their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to【B6】______in space. The unit of radiation is called"rem". Scientists have reason to think that a man can【B7】______ far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is【B8】______difficult to be sure about radiation damage—a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed children or even grandchildren. Missions of the Apollo flights have had to cross belts of high amounts of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short, we simply do not know yet how men are going to get on, when they spend weeks and months outside the protection of the atmosphere,working in a space【B9】______.Drugs might help to decrease the damage done by radiation, but no really【B10】______ones have been found so far. [br] 【B9】
选项
答案
laboratory
解析
空格前的space(太空)为不可数名词,故其前面的a并非修饰space,由此可知空格处才是短语的中心词,应填入名词的单数形式。laboratory指“实验室”,可以根据“labor(劳动)+atory(场所)→劳动的地方→实验室”的方式来记忆。
转载请注明原文地址:https://tihaiku.com/zcyy/3562115.html
相关试题推荐
Shiftworkisconcentratedinthemostdangerousareasofemployment.Ithas
Shiftworkisconcentratedinthemostdangerousareasofemployment.Ithas
Shiftworkisconcentratedinthemostdangerousareasofemployment.Ithas
Shiftworkisconcentratedinthemostdangerousareasofemployment.Ithas
Shiftworkisconcentratedinthemostdangerousareasofemployment.Ithas
[originaltext]W:(9)IcametotalktoyoubecauseIwanttoapplyforascholars
[originaltext]W:(9)IcametotalktoyoubecauseIwanttoapplyforascholars
Darkchocolateisknowntohelppreventheartdisease,becausecocoacontain
Darkchocolateisknowntohelppreventheartdisease,becausecocoacontain
Darkchocolateisknowntohelppreventheartdisease,becausecocoacontain
随机试题
Whathasthewomanbeendoing?[br][originaltext]M:Iseeyouandyourfriends
Itwasaverytemptingjoboffer.Iweighedupthe______,butIdecidedinthe
HenryFordwasthemanwhofirststartedmakingcarsinlarge【B1】______.He
焊接网的网面长度为1.9~3.0m,网面宽度为1.5~2.5m。()
商业银行在识别和分析集团法人客户信用风险的过程中,应当()A.对成员企业分
患者,男性,25岁。患者主诉右下腹剧烈疼痛,腹痛开始于脐周,然后转移至右下腹。体
炮制后能使贮存期间有效成分损失减少的药物是A.乌头B.延胡索C.苦杏仁D.马钱子
下列关于高强螺栓连接的叙述,错误的是( )。 A、摩擦连接是目前广泛采用的基
简评拿破仑。
根据《招标投标法实施条例》,可以不进行招标的情形有( )。A.技术复杂、有特殊
最新回复
(
0
)