20kV系统接地网的设计与10kV系统接地网的设计墓本相同
参考答案:错
There are many ______________. [ ]
A. baby
B. babys
C. babies
膀胱结石()
A.肾区绞痛伴镜下血尿
B.排尿中断伴疼痛
C.尿频、尿急伴镜下血尿
D.尿频、尿急、尿痛伴终末血尿及脓尿
E. * * 口滴血