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

游客2023-11-05 24

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

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Whatisthepossibi9reasonforthecandidatesfailtogetjobsattheBBC?[ori

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ThereasonwhyIleftbeforethemeetingendedwas________________Iwasbored

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[br][

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[origin

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A.100MPa(压应力) B.80MPa(压应力) C.180MPa(压应

对急性扁桃体炎的描述，错误的是A.多是在慢性扁桃体基础上反复急性发作 B.常发

接地装置运维细则中,接地装置的全面巡视按照(____)巡视执行。特殊$;$熄灯$

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