高比转数的离心泵叶轮外径(),内径()。
A、大,大
B、大,小
C、小,大
D、小,小
参考答案:B
The party was meant to be a surprise to everyone who would take part, but one of the
organizers____ the plan. [ ]
A. gave away
B. gave out
C. gave up
D. gave back
以下哪些交易只能联动发起,不能手动发起()
A.5327圈提
B.待补登
C.5329-金融IC卡余额补登退回
D.调整芯片余额