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

游客2023-11-05 22

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

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ThereasonwhyIleftbeforethemeetingendedwas________________Iwasbored

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[br][

ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[origin

Alanguageclasshas155students.80ofthemcanspeakEnglish,40ofthemcan

[originaltext]Teacherssaythedigitalagehashadagoodinfluence—anda

Asfoodistothebody,soislearningtothemind.Ourbodiesgrowandmusc

[originaltext]Inthe1940’sand50’s,itwasnotlikelythatayoungblack

社区得以存在和发展的内在要素是()A.经济 B.文化 C.商业 D.交

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案例五 某建设单位就一工业厂房编制了招标文件，招标文件中规定该工程投标报价

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