What is the one reason astronomers make long time exposures?A、To spend less time

游客2023-11-05 32

问题 What is the one reason astronomers make long time exposures?

选项 A、To spend less time at their telescopes.
B、To overcome the problem of weak light.
C、To take more photographs.
D、To photograph astronomical objects without using a telescope.

答案 B

解析细节题。文章后面讲到由于大部分天体距离很远，所以我们能捕捉到的它们所发出的光线也很微弱，但如果用望远镜充当照相机就可以进行长时间曝光，以此将物体拍下来。故B项正确。

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What is the one reason astronomers make long time exposures?A、To spend less time

Youallknowthereasonswhichhaveimpelledmeto______thethrone.A、renderB、

ThereasonBeethovenwentawaytothecountryis______.A、thathewasgradually

Whatisthepossibi9reasonforthecandidatesfailtogetjobsattheBBC?[br]

Whatisthepossibi9reasonforthecandidatesfailtogetjobsattheBBC?[ori

Yourreasonsfordemandinganincreaseinwagesare______.A、inaccurateB、inadeq

ThereasonwhyIleftbeforethemeetingendedwas________________Iwasbored

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[br][

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[origin

Asthemountainswerecoveredwitha______ofcloud,wecouldn’tseetheirtops

【B1】[br]【B2】[audioFiles]audio_eusm_j01_266(20099)[/audioFiles]anxiety由空前的or可推

TheWorldBank’sRealProblemTheWorldBankisundeniablyincr

Manythingsaboutlanguagesareamystery,andmanywillalwaysremainso.B

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男婴，GIP1，39周宫内妊娠，于2011年5月30日顺利娩出，体重3.7kg，

有一家高科技生产企业，在公司规模扩大和业务拓展的压力下，公司高层认识到需要加大公

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