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问题 单项选择题

配电站户外高压设备部分停电检修或新设备安装，工作地点四周围栏上悬挂适当数量的“止步，高压危险！”标示牌，标示牌应朝向（）。

A.围栏里面

B.围栏外面

C.围栏入口

答案

参考答案：A

单项选择题

You are getting project performance information as your project is being executed. Based on the performance information, forecasts are updated and reissued. Some factors that could change as forecasts are updated include ______ .

A) estimate to complete
B) estimate at completion
C) estimate to complete and estimate at completion
D) none of the above
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问答题 简答题

按制造厂设计，发电机的第一临界转速是多少？
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