对于（）要求退汇的，汇出行应及时落实退汇申请的情况。
A、汇入行
B、收款人
C、汇出行
D、转汇行
参考答案：C
1947年，揭开人民解放军全国性战略进攻序幕的历史事件是[ ]
A．孟良固战役
B．刘邓大军挺进大别山
C．三大战役
D．渡江战役
— Do you know ______ the new mobile phone last week?
— Maybe 900 yuan. I'm not quite sure. [ ]
A. how much she paid for
B. how much will she pay for
C. how much did she pay for
D. how much she will pay for
