若微机在工作过程中电源突然中断，则计算机中（）全部丢失，再次通电后也不能恢复。

______ have the option to exercise the option.

A．Only option sellers

B．Only option buyers

C．Both the option sellers and buyers

D．Only the exchanges

I have no()but to listen to my boss.

A、privilege

B、respect

C、priority

D、option

听力原文： Currency options may have two kinds of value, intrinsic value and time value. If and to the extent that an option would currently be profitable to exercise, it is said to have intrinsic value. In the case of a call, if the spot price is higher than the option exercise price, the option has intrinsic value. In the case of a put, if the spot price is less than the option exercise price, the option has intrinsic value. Such options are said to bein-the-money'. If the opposite is true of either calls or puts, they have no intrinsic value and said to be out-of-the-money'.

28. What are the two kinds of value do currency options have？

29.When does a call option have intrinsic value？

30.What is the option said to be if it has intrinsic value？

(28)

A．Intrinsic value and time value.

B．Internal value and external value.

C．Exchange value and time value.

D．Real value and stated value.

-- I've never seen that movie. -- ______ have I.

A．So

B．Either

C．Neither

D．Too

______ I've read this book, you can have t.

A．Though

B．Until

C．Since

A．have a try

B．have a go

C．had a go

D．try