功能滋肾补肝，退虚热，明目的中药是
A．白芍B．女贞子C．玉竹D．墨旱莲E．熟地黄
参考答案：B
— ________________
— She is tall and she has big eyes.
A．Where is she from?
B．What’s her name?
C．What does she look like?
D．What does she have ?
直流电动机用于动力设备的最大特点是（），调速方便、平稳。
A.转矩大
B.转速高
C.功率大
D.功率因数大
