首页
登录
职称英语
Space is a dangerous place, not only because of meteors(流星)but also because
Space is a dangerous place, not only because of meteors(流星)but also because
游客
2023-08-29
56
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【B1】______ again acts as 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】______ off. As soon as men leave the atmosphere they are exposed to this【B5】______ and their spacesuits or the walls of their spacecraft, if they are inside, do【B6】______ a lot of radiation damage.
Radiation is the greatest known danger to【B7】______ in space. The unit of radiation is called "rem". Scientists have reason to think that a man can put up with 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—【B9】______, 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.【B10】______,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 laboratory. Drugs might help to decrease the damage done by radiation,【B11】______ [br] 【B9】
选项
答案
a person may feel perfectly well,but the cells of his or her sex organs may be damaged
解析
根据前后文的大意,不难知道这里说的是辐射损害的隐秘性。浏览后面一句,可推知辐射会对人的生殖系统等方面造成损害,所以听音时不难抓住关键词。
转载请注明原文地址:https://tihaiku.com/zcyy/2968469.html
相关试题推荐
Accordingtothepassage,scholarsandstudentsaregreattravelersbecause____
Becausetheotherwitnesseswerekilledmysteriously,he______(成了这个案件中唯一的证人).bec
______(这名运动员被剥夺掉金牌)becausehewasfoundtohavetakenforbiddendrugs.Theathle
[audioFiles]audio_eusm_0207(20106)[/audioFiles]A、Theyaredelightedbecausethe
Thisisagoodchancefortheseartists______(因为他们的个人主义最终在作品中表现了).as/becauseth
Theauthorofthereport_______________________(对医院的问题非常了解)becausehehasbee
BecauseSouthAfricansaregenerallysobubbly(热情奔放的)andtalkative,silenc
BecauseSouthAfricansaregenerallysobubbly(热情奔放的)andtalkative,silenc
BecauseSouthAfricansaregenerallysobubbly(热情奔放的)andtalkative,silenc
BecauseSouthAfricansaregenerallysobubbly(热情奔放的)andtalkative,silenc
随机试题
HowdidAmandagetthemovietickets?[br][originaltext]M:Amanda,didyouche
Questions29-40•Readtheinformationaboutcommercialbanks.•Choose
治疗肺炎球菌肺炎时首选下列哪种药物A.丁胺卡那 B.青霉素G C.庆大霉素
??陕西某高校一位副教授因高热住进职工医院,经B超、CT、抽血、抽骨髓化验等检
在工程实践中,焊接工艺评定的标准应根据产品、施工项目性质和行业的不同,按照设计文
下列关于工业建筑及总平面设计中的场地要求的表述中,正确的是()。A.不适应物
期货公司应当定期向中国期货保证全监控中心提交客户的影像资料,包话()A.个人
以下哪个囊肿X线检查无改变A.鼻腭囊肿 B.正中囊肿 C.球上颌囊肿 D.
下列说法中属于观察法缺点的是( )。A.只能描述现象而难以说明原因 B.调研
建立国土空间规划体系并监督实施,将( )等空间规划融合为统一的国土空间规划,实
最新回复
(
0
)