在证券买卖成交的同时就约定于未来某一时间以某一价格双方再进行反向交易的行为称为（）。
A.现货交易
B.回购交易
C.期货交易
D.远期交易
参考答案：B
—Alex has lost his job.
—________? As far as I know, he is devoted to his work.
A．What for
B．So what
C．How’s that
D．How come
上述阴阳失调病机中，发病特点为真寒假热的是（）
A．阴偏衰
B．阳偏衰
C．阴盛格阳
D．阳盛格阴
E．阴损及阳
