电流互感器相对电容量比值检测从()上取信号。
A.末屏接地线
B.高压电缆接地线
C.铁芯和夹件接地线
D.本体接地线
参考答案:A
The notebooks aren't here. Please _the teacher _ them.
A.speak, to
B.sell, to
C.ask, for
D.buy, from
单侧隐睾手术治疗应在()
A.2岁以前
B.3~6岁
C.7~10岁
D.青春期
E.婚后影响生育时