其他条件不变,看涨期权理论价值随行权价格的上升而()、随标的资产价格波动率的上升而()。
A.下降、上升
B.下降、下降
C.上升、下降
D.上升、上升
参考答案:A
We __________ our lives had it not been for the policeman.
A.would have lost
B.should lose
C.might lose
D.could have lost
“硼—铝”反常现象