On a clear night, people can see Light pollution occurs when

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问题 On a clear night, people can see______
Light pollution occurs when______

选项 A、artificial lights illuminate the night sky.
B、the moon lights up the night sky.
C、too many stars are visible in the night sky.
D、streetlights are turned off.

答案A

解析根据短文第二段第二句的内容可以得知答案。

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本试题收录于：职称英语理工类C级题库职称英语分类

职称英语理工类C级

职称英语

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On a clear night, people can see______ Light pollution occurs when______

职称英语理工类C级

职称英语

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AMakingfriendswithnewacquaintancesBCloselinkbetweencompanionshipandbelongingnessCHowtosatisfyotherpeople’s

AMakingfriendswithnewacquaintancesBCloselinkbetweencompanionshipandbelongingnessCHowtosatisfyotherpeople’s

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On a clear night, people can see Light pollution occurs when