憋尿时下腹部被踢伤多引起
A．肾结石B．肾结核C．肾肿瘤D．肾下垂E．肾水肿
参考答案：C
I can think of many cases ________the media have a strong effect on young men. [ ]
A. why
B. where
C. as
D. which
TAE-100A/30离心式压缩机油泵用电（）。
A.380V
B.三相交流电
C.6000V
D.220V
