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

游客2023-11-05 42

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。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3160753.html

相关试题推荐

Youallknowthereasonswhichhaveimpelledmeto______thethrone.A、renderB、
ThereasonBeethovenwentawaytothecountryis______.A、thathewasgradually
Whatisthepossibi9reasonforthecandidatesfailtogetjobsattheBBC?[br]
Whatisthepossibi9reasonforthecandidatesfailtogetjobsattheBBC?[ori
Yourreasonsfordemandinganincreaseinwagesare______.A、inaccurateB、inadeq
ThereasonwhyIleftbeforethemeetingendedwas________________Iwasbored
Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra
Whichofthefollowingismentionedasareasonforthelowpopulationgrowthra
ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[br][
ThewomanlovetoliveinthecityforthefollowingreasonsEXCEPTthat[origin

随机试题

Mr.Scott’s______forimprovingthetrafficflowwillbereviewedbycitycouncil
Whatcanweinferfromthispassage?[originaltext]ThesuiciderateinAmeric
Ahappymarriageapparentlyisgoodmedicine,buthostilespousesmaybehar
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemi
(1)Ithaslongbeenbelievedthatthesmartphonesinourpocketsareactual
成人抗碱血红蛋白小于A.4．0％ B.2．0％ C.1．0％ D.2．5％
A公司2019年12月末的流动资产为800万元，流动负债为400万元，存货500
A.类人猿型骨盆 B.扁平骨盆 C.漏斗骨盆 D.均小骨盆 E.妇女型骨
风化作用包括（）。 A.日照B.机械破碎C.水的腐蚀D.冰裂作用
（2016年真题）下列各项中，应使用强度动因作为作业量计量单位的是（）。A

最新回复(0)

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

Mr.Scott’s______forimprovingthetrafficflowwillbereviewedbycitycouncil

Whatcanweinferfromthispassage?[originaltext]ThesuiciderateinAmeric

Ahappymarriageapparentlyisgoodmedicine,buthostilespousesmaybehar

Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemi

(1)Ithaslongbeenbelievedthatthesmartphonesinourpocketsareactual

成人抗碱血红蛋白小于A.4．0％ B.2．0％ C.1．0％ D.2．5％

A公司2019年12月末的流动资产为800万元，流动负债为400万元，存货500

A.类人猿型骨盆 B.扁平骨盆 C.漏斗骨盆 D.均小骨盆 E.妇女型骨

风化作用包括（）。 A.日照B.机械破碎C.水的腐蚀D.冰裂作用

（2016年真题）下列各项中，应使用强度动因作为作业量计量单位的是（）。A