首页
登录
职称英语
The Chinese fairy story Flying to the Moon now turns to be true, with China【
The Chinese fairy story Flying to the Moon now turns to be true, with China【
游客
2023-07-14
81
管理
问题
The Chinese fairy story Flying to the Moon now turns to be true, with China【C1】______the country’s second unmanned lunar probe, Chang’e 2 on 1st October, 2010. This mission marked another step for China’s pursuit of moon exploration. In fact, people all over the world have been and are【C2】______developing technologies for the exploration of deep space and the peaceful use of outer space, as space is actually 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【C3】______our protective blanket on【C4】______. Light gets through, and this is essential【C5】______plants to make the food which we【C6】______. Heat,【C7】______, makes our environments tolerable and some ultraviolet rays (紫外线的) penetrate the【C8】______. Cosmic (宇宙的) rays of various kinds come【C9】______the air from outer space, but【C10】______quantities of radiation from the sun are screened off.【C11】______men leave the atmosphere they are【C12】______to this radiation; 【C13】______their spacesuits or the walls of their spacecraft, if they are inside, 【C14】______prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in【C15】______. Doses of radiation are measured in【C16】______called "rents (雷目)". We all【C17】______radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The "【C18】______" dose of radiation that we receive each year is about two millirems; it【C19】______according to where you live, and this is a very rough estimate. Scientists have reason to think that a man can【C20】______far more radiation than without being damaged; the figure of 60 rems has been agreed. [br] 【C16】
选项
A、pieces
B、units
C、parts
D、elements
答案
B
解析
语法知识。本句意为“射线的多少可以以雷目这个测量单位进行测量”。本题中,measure意为“测量”,其后应紧跟“用……单位测量”,故unit(单位,单元)正确。element意为“元素”,part意为“部分”,piece意为“碎片”,这三个选项均不符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/2837428.html
相关试题推荐
Moreoftenthannot,itisdifficultto______theexactmeaningofaChineseidi
ShouldWeResumetheTraditionalChineseCharacters?1.有人提出恢复使用繁体字2.有人对此反对3.你的
Thisbookisaboutthelifeofa__________(中国当代著名作家).famousChinesecontempora
Whentimeswerehard,whitementhoughtthatChineseAmericanswereresponsible
Whentimeswerehard,whitementhoughtthatChineseAmericanswereresponsible
Whentimeswerehard,whitementhoughtthatChineseAmericanswereresponsible
Whentimeswerehard,whitementhoughtthatChineseAmericanswereresponsible
TheHistoryofChineseAmericansFormany
TheChinesefairystoryFlyingtotheMoonnowturnstobetrue,withChina【
TheChinesefairystoryFlyingtotheMoonnowturnstobetrue,withChina【
随机试题
Largecompaniesneedawaytoreachthesavingsofthepublicatlarge.The
男性,41岁,2周来反复呕血3次,每日黑便3~5次,下列能判断上消化道出血已基本
A.防己 B.桑叶 C.五加皮 D.桑寄生 E.豨莶草具有利水消肿功效的
ELISA间接法是A.酶标记抗原用于抗体的检测B.酶标记抗抗体用于抗体的检测C.
Thechangeinthatvillagewasmiraculou
对确诊有价值的辅助检查是A、腹腔灌洗 B、淀粉酶测定 C、X线 D、腹部M
控制(继保)室、开关(母线)室、交直流电源室、电缆竖井、微机(通讯)室、()、接
学习过程中,学习者为提高识记效果,尽可能地让多种感官参与学习,这种学习策略属于(
在我国历史上曾出现过多种宗教,最具影响的有()。A.道教 B.佛教 C
根据《建设工程质量保证金管理办法》,下列关于缺陷责任的说法正确的有()。A.缺
最新回复
(
0
)