1-5月标准体系

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

发布于 2021-02-22 05:55:40

【单选题】
A 0.5
B 1
C 1.5
D 2

关注者

0

被浏览

94

wzh1326 2023-02-22

这家伙很懒，什么也没写！

此回答被采纳为最佳答案，开通VIP会员可查看

1 个回答

撰写答案

请登录后再发布答案，点击登录

关于作者

kid

这家伙很懒，什么也没写！

提问

回答

769

被采纳

770

关注TA

发私信

相关问题

1

_9_ science, the impact has been even more dramatic.

2

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

3

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

4

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

5

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

6

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

7

__15_ in the glare of our own sky.

8

Reducing light pollution is not difficult. It _16_ that public officials

9

and citizens be _17_of the problem and act to counter it.

10

As _18 people can help reduce sky glow

发布
问题

手机
浏览

扫码手机浏览

在线
客服