自动行权指在期权合约到期时，无需期权买方主动提出行权，一定程度（）的期权将自动被行权。
A、实值
B、虚值
C、平值
D、所有的
参考答案：A
Why does she steal things ________ she could easily afford to buy them?[ ]
A. when
B. while
C. unless
D. which
―You’ve dropped _______ “s” in the word “success”.
―Oh, _______ letter “s” is doubled.
A．a; a
B．a; the
C．an; the
D．the; the
which