【单选题】下列关于期权时间价值的理解,不正确的是 ( )。
【简答题】A.By learning English alone. B.By learning English hard before test. C.By studying at her spare time. D.By learning a little regularly.
【单选题】— _________ have you been learning English? .—I have been learning English for six y
A.
39.— _________ have you been learning English? . —I have been learning English for six years. A. How long
【单选题】— How long have you been learning English? — I've been learning English _____ six years _____. [ ]
【单选题】下列说法正确的有 ( )
A.
某看涨期权价格为5元,行权价为10元,市场价为12元,则该期权的时间价值为7元
B.
期权的剩余有效时间越长,时间价值越高,随着剩余有效时间的缩短而减小,呈线性关系
C.
通常情况下,期权价值与股票价格的波动率成正相关
【单选题】I have a Longman Dictionary of Contemporary English, which is an important ________ learning English. [ ]
【简答题】A.By learning English alone. B.By learning English hard before test. C.By studying at her spare time. D.By learning a little regularly.