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【多选题】
关于机房环境安全防范措施，以下说法正确的是（）A.
数据中心机房及营业网点应设立监控系统，对系统运行的外围环境、操作环境实施有效监控
B.
数据中心机房应具有火灾自动报警系统，配备合适的灭火器材。必须有防水和防渗漏措施
C.
数据中心机房设备用电与空调、照明用电必须分开，可以不配置UPS
D.
计算机系统应具有防雷（防雷装置、接地）措施；机器设备应有接地设施
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反馈参考答案：
举一反三
【判断题】Emails allow us to keep projects moving when our co-workers are unavailable or on the other side of the world.
A.
正确
B.
错误
【单选题】Mr. White, along with his assistants, _________ on the project day and night to meet the dealine.
A.
work
B.
working
C.
is working
D.
are working
【单选题】Shewalked along the street, with a white bag in her right hand, _______ where togo.
A.
not having known
B.
not knowing
C.
didn`tknow
D.
not to know
【单选题】Mr. White, along with his assistants, ______ on the project day and night to meet the deadline.
A.
work
B.
working
C.
is working
D.
are working
【简答题】white–wit
【单选题】I don’t really work here.I____until the new secretary arrives.
A.
just help out
B.
have just helped out
C.
am just helping out
D.
is completed
【简答题】三爪自定心卡盘适用于装夹（）
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