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
2024-09-05
23
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 acts 【C1】_____ our protective blanket on earth. Light gets through, and this is 【C2】_____ for plants to make the food 【C3】_____ we eat. Heat, too, makes our environment endurable. Various kinds of rays 【C4】_____ the air from outer space, 【C5】_____ enormous quantities of radiation from the sun are 【C6】_____ off. As soon as men leave the atmosphere they are 【C7】_____to this radiation but their spacesuits or the walls of their spacecraft, 【C8】_____ they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known 【C9】_____ to explorers in space. The unit of radiation is called "rem (雷姆)". Scientists have reason to think that a man can 【C10】_____ far more radiation 【C11】_____ 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely 【C12】_____ to be sure about radiation damage—a person may feel perfectly well, but the 【C13】_____ of his or her sex organs may be damaged, and this will not be discovered 【C14】_____ the birth of deformed children or even grandchildren.
Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been 【C15】_____, but the Apollo missions have been quite 【C16】_____. We simply do not know yet how men are going to get on when they 【C17】_____ weeks and months outside the 【C18】_____ of the atmosphere, working in a space laboratory. Drugs might help to 【C19】_____ the damage done by radiation, but no really 【C20】_____ ones have been found so far. [br] 【C20】
选项
A、curable
B、capable
C、efficient
D、effective
答案
D
解析
考查形容词词义辨析。curable“能治愈的”,修饰的对象是疾病而不是药物,故可首先排除;capable“有能力的”,修饰的对象是人,也排除;efficient“效率高的”,一般用于形容机器的性能等,也排除。effective“有效的”,通常指能取得预期或先见效果的,符合句意,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3745420.html
相关试题推荐
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
Spaceisadangerousplace,notonlybecauseofmeteors(流星)butalsobecaus
随机试题
AmericansEugeneFama,LarsPeterHansenandRobertShillerwontheNobelPr
WilliamShakespeare(1564-1616)wrotemanyplaysandpoemswhichareknown
Forebookdevotees,readingisawholenewexperienceDavid
[originaltext]Iliveinasmallvillageinthecountry.MywifeandIrunt
(2017年真题)下列关于普通股的表述中,错误的是()。A.普通股一般具有
()船队完成人类历史上的第一次环球航行,证明了地球是圆的。 A.达*伽马B
教师义务的实质是教师的职责() A.在行为上的表现B.在意志上的体现C.在
引起促胃液素释放的主要因素是A.蛋白质消化产物 B.盐酸 C.脂肪 D.糖
周童(5岁)星期天和祖母李霞去公园玩,游戏过程中周童将林晨(6岁)的双眼划伤致使
下列不属于中央银行对银行的业务的是()。A.集中准备金 B.最后贷款人 C
最新回复
(
0
)