目前农业银行对一级分行计缴的外汇存款准备金率为（）
A.5%
B.8%
C.10%
D.20%
参考答案：B
Had the boy worked harder, he ______ the exam.
A．must have got through
B．could get through
C．ought to get through
D．would have got through
何谓重叠综合征？
