2022南邮学位英语-

devices at sites _11_ of air pollution and urban sky glow.

发布于 2021-02-22 13:55:38

【单选题】
A worthy
B typical
C critical
D free

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野百合也有春天

这家伙很懒，什么也没写！

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1

Most sky glow is_6_.

2

It comes mainly from lighting sources that do little to increase _7_ safety,security or utility.

3

They produce only glare, _8_ over one billion dollars annually in the US alone.

4

_9_ science, the impact has been even more dramatic.

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Scientists require observations of extremely faint objects that can only be _10_with advanced

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For example, some images of the objccts can 12_ information about faraway comers of the universe,

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helping us understand the way in _13_ our world was actually formed.

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系统应急启动后，在蓄电池电源供电时的持续工作时间应满足其他建筑，不应少于（）h

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_14_, the light from these objects can be lost at the very end of its

10

__15_ in the glare of our own sky.

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