电压互感器低压侧装设熔断器，是为了当电压互感器（）时，保证互感器不受损坏。
A、过流和低压电路发生短路
B、开路
C、短路
D、过流
参考答案：A
右上直肌和右上斜肌（）。
A.协同肌
B.拮抗肌
C.配偶肌
D.使眼球内旋的肌肉
E.使眼球外旋的肌肉
The children were left ________of a neighbor when they were on holiday.
A．in charge
B．in the charge
C．under charge
D．at charge
