运动中的离心泵的入口压力出口压力（）。
A、高于
B、低于
C、等于
参考答案：B
Even if you come here times,I don’t let you go.
A．a great deal
B．a great deal of
C．a great many
D．a great many of
22．She used to be terribly shy, but a year abroad has completely _________ her.
A．transmitted
B．transported
C．transplanted
D．transformed
