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问题 问答题

补偿装置的补偿器由哪几部分组成？

答案

参考答案：补偿器由补偿滑轮、补偿绳、杵环杆、坠砣杆、坠砣块及连接零件组成。

单项选择题

膀胱的募穴是：

A．京门

B．中极

C．石门

D．关元

E．章门
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单项选择题

The earned value technique is a commonly used method of performance measurement．It integrates project scop,schedule,and cost measures to help the project management team assess project performance.If aproject's Cost Performance Index(CPI=EV/AC) value less than 1.0，it means that______。

A．the cost savings for work completed
B．the project is ahead of its planned schedule
C．the cost overrun for work completed
D．less work was completed than was planned
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