外汇收入所有者将外汇卖给外汇指定银行，银行根据交易发生日的人民币汇率付给等值人民币的行为叫（）。
A、结汇
B、售汇
C、付汇
D、套汇
参考答案：A
At that time the US was at_____war with Iraq, and Shirley worked as_____doctor in the army.
A．a; a
B．the; a
C．/; a
D．the; /
50% of the people（）for the survey were female.
A.were questioned
B.who questioned
C.who were questioned
D.question
