2022南邮学位英语-

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

发布于 2021-02-22 13:55:34

【单选题】
A nighttime
B lifetime
C peacetime
D Longtime

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fengshan 2023-02-22

这家伙很懒，什么也没写！

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1

We have lost our view of the stars and _3_ our nighttime environment as well.

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Such a loss _4_ be acceptable if light pollution were the inevitable price of progress

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高危险场所灯具光源应急点亮的响应时间不应大于（）s

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, _5_ it is not.

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Most sky glow is_6_.

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_9_ science, the impact has been even more dramatic.

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

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