— What is she doing?
— She is _____________.
A. reading
B. read
C. to read
D. reads
答案:A
主治肾虚精亏,封藏失职所致之遗精,最宜选用( )
A.六味地黄丸B.天王补心丹C.桑螵蛸散D.金锁固精丸E.大补阴丸
尖嘴钳主要用于二次小线工作,其钳口用来弯折线头或把线弯成圈以便接线螺丝,将它旋紧,也可用来夹持小零件。