根据下图分析变压器电流差动保护原理
当k1发生相间短路时,流经差动回路中的差动继电器的电流()。
A.≈0
B.<0
C.>0
D.∝
参考答案:A
There’s no point in trying to ________with her because she will never change her mind.
A.agree
B.compete
C.compare
D.reason
6.9dm3=______cm3=______L=______mL.