关于输精管结扎术，正确的的是A．是一种男性永久性节育方法B．结

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问题单项选择题

关于输精管结扎术，正确的的是

A．是一种男性永久性节育方法
B．结扎后不再产生精子
C．所有男性均可使用此方法节育
D．术后并发症多
E．术后不会导致再孕

答案

参考答案：A

单项选择题

Cost performance measurement is BEST done through which of the following ？（）

A．Asking for a percent complete from each team member and reporting that in the monthly progress report

B．Calculating earned value and using the indexes and other calculations to report past performance and forecast future performance

C．Using the 50/50 rule and making sure the life cycle cost is less than the project cost

D．Focusing on the amount expended last month and what will be expended the following month

单项选择题

呼吸停止的触电者，采取人工呼吸方法，强迫进行气体交换，对触电人吹气频率为每分钟（）次左右。

A.75

B.20

C.80

D.65