中性点不接地系统发生单相接地故障时，接地故障电流比负荷电流相比往往（）。
A.大得多
B.小得多
C.看故障点接地电阻大小
D.无法确定
参考答案：B
She looks sad. Could you please tell me that prevents her from being as happy as before?[ ]
A. what it is
B. it is what
C. how it is
D. it is how
启动时水泵的出口门无法打开，应（）。
