根据操作负荷的性质和操作的频繁程度分,操作次数不多的低压电器属于()。
A.A类
B.B类
C.C类
参考答案:B
______ and you will be admitted into your desired university.
A.If making one more effort
B.If you make one more effort
C.One more effort
D.To make one more effort
柴油机喷油泵的技术要求保证各缸喷油延续()要相等。