________ is English. _________ name is Henry. [ ]
A. He, Her
B. She, His
C. He, His
答案:C
取消交易原交易应为该账户当日所做的_____的账务性交易。(三级)
使用憋压法判断泵的工作状态,油压与套压接近,油套连通,一般是()造成的。
A.油管严重漏失
B.转子损坏
C.原油粘度大
D.泵定子橡胶脱落