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
A scientist once said that studying the stars from the earth is【C1】______ looking up at the sky from the bottom of a switching p
A scientist once said that studying the stars from the earth is【C1】______ looking up at the sky from the bottom of a switching p
admin
2013-04-15
40
问题
A scientist once said that studying the stars from the earth is【C1】______ looking up at the sky from the bottom of a switching pool. Even on the clearest night the earth’s dense atmosphere【C2】______ 30 percent of the light from any star. Air turbulence may cause stars to twinkle.【C3】______ a telescope the stars seem to jump around dizzily.
Because the moon has no atmosphere, astronomers are looking forward to【C4】______ an observatory there. On the moon, there will be no clouds to【C5】______ the view. The sky will appear dark【C6】______ , so astronomers can work twenty-four hours a day. Because there is no air turbulence, the stars will appear【C7】______ through a telescope.
【C8】______ the moon is relatively near the earth, moon-based astronomers will see the stars in the familiar patterns known on【C9】______ . They will not need new star maps of the sky. Stars【C10】______ the moon will appear to move very slowly. Because the earth【C11】______ on its axis once every twenty-four hours earth based astronomers see the stars hurry 【C12】______ the sky each night. The moon rotates on its axis only once a month. To astronomers on the moon, the stars will appear to stand【C13】______ still. Moon-based astronomers will have much more time【C14】______ their telescopes and take time-exposure photographs.
On the earth, mechanical radio noises【C15】______ the airwaves and interfere with the【C16】______ of radio signals from certain stars. A radio telescope【C17】______ on the far side of the moon will be permanently protected from such 【C18】______ .
It won’t be easy to put telescopes on the moon. However, astronomers are【C19】______ the job can be done. They are convinced that the moon is an【C20】______ place to set up an observatory.
【C16】
选项
A、hearing
B、projecting
C、getting
D、reception
答案
D
解析
interfere with也是干扰之意,前半句讲无线电的机械噪声干扰了空气波的传播,因此,也就干扰了无线电本身的接收信号。所以,reception符合句意要求。
转载请注明原文地址:https://jikaoti.com/ti/3eXFFFFM
0
大学英语六级
相关试题推荐
A、She’llgraspthemainthingstopasstheexam.B、She’llnevercatchupinthatway.C、It’snevertoolatetobeginstudying.D
A、Studyinghistory.B、Buyinglotterytickets.C、Registeringforcourses.D、Goingtoanartgallery.C对话中女士说thedoubleE和arthist
Someday,perhaps,scientistswill______(能够准确地预报地震)
Schoolslookingtobancellphonesmayhaveanewexcuse:agrowingnumberofpeoplearedevelopinganallergy(过敏)tometalin
Schoolslookingtobancellphonesmayhaveanewexcuse:agrowingnumberofpeoplearedevelopinganallergy(过敏)tometalin
Schoolslookingtobancellphonesmayhaveanewexcuse:agrowingnumberofpeoplearedevelopinganallergy(过敏)tometalin
ScientistsWorryMachinesMayOutsmartManArobotthatcanopendoorsandfindelectricaloutletstorechargeitself.Compu
ScientistsWorryMachinesMayOutsmartManArobotthatcanopendoorsandfindelectricaloutletstorechargeitself.Compu
ScientistsWorryMachinesMayOutsmartManArobotthatcanopendoorsandfindelectricaloutletstorechargeitself.Compu
随机试题
以下可作为发明获得专利权的是()
关于大脑皮层中央后回感觉投射规律的叙述,正确的是()
破伤风最初出现典型的强烈收缩的肌肉是
关于霍乱弧菌的描述正确的是()
患者,男性,60岁,既往体健。冬季在晚餐后将取暖用火炉移人卧室内。次日晨,其子发现其昏睡不醒,急送医院。查体:血压100/55mmHg,体温38.7℃,呼吸12次/min,心率104次/min,面色潮红、大汗,口唇黏膜呈樱桃红色。护士给予的护理措施不妥
下列各项因素中,既影响经营杠杆系数又影响财务杠杆系数的有()。
下列选项中,不属于基因工程中目的基因的检测与鉴定方法的是()。
Hardlyaweekgoesbywithoutsomeadvanceintechnologythatwouldhaveseemedin-credible50yearsago.Andwecanexpectthe
A、30.B、20.C、60.D、0.C选项均为数字,因此听音时应关注与数字相关的信息。题目问女士每周抽多少根烟。会话中,男士问女士是否把自己描述为重度吸烟者。女士回答说,她不会把每周抽3包20支装的烟称之为重度抽烟,由此可见,女士每周抽20x3=
A、Conflictsaboutgunuse.B、Welfareabuseandimmigration.C、Questionsaboutclimate.D、RaceissuesinAmerica.B新闻后段提到,共和党候选人更
最新回复
(
0
)