细辛具有的功效是A．祛风胜湿 B．消肿排脓 C．温中和胃 D．温助阳气 E．温肺化饮

妊娠期母体血容量增加，在哪段时间达高峰（）

A.孕12～20周

B.孕20～28周

C.孕28～30周

D.孕32～34周

E.孕36～38周

战略管理呼唤怎样的战略家？

The computer was used in teaching. As a result, not only _____, but students became more interested in the

lessons. [ ]

A. saved was teachers' energy

B. was teachers' energy saved

C. teachers' energy was saved

D. was saved teachers' energy

简述设置和更改虚拟内存的方法。

棉叶螨的防治指标是红叶率达到（）。

A、1%

B、2%

C、3%

D、4%