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问题 多项选择题

下列关于实值期权、虚值期权、平值期权的说法正确的是（）。

A.人心向涨，认购期权的时间价值越来越贵

B.人心向跌，认沽期权的时间价值越来越贵

C.平值期权的时间价值最大，交易通常最活跃

D.实值期权的权利金等于时间价值

答案

参考答案：A, B, C

补全对话，情景问答

根据情景完成对话 。

Mary:Hi, Zhang Ming. May I ___1__you some questions?

Zhang Ming:Sure.

Mary:What's your ___2___month?

Zhang Ming: December.  It is very cold, 'but I  can skate. Skating is my favorite ___3___

Mary:What's your favorite ___4___?

Zhang Ming: English. It's___5___ , but interesting. Our teacher often tell us stories in ___6___. We like

___7___

Mary:Do you like music?

Zhang Ming:Yes, I do. Because it's very___8___.

Mary:__ 9_ _is your favorite__10___?

Zhang Ming: Tian Zhen.  Her songs are very good. I can sing many of her songs.

Mary:Thank you very much.

Zhang Ming:You are welcome.
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单项选择题

有一种互连设备工作于网络层，它既可以用于相同(或相似)网络间的互连，也可以用于异构网络间的互连，这种设备是（ ）。

A． 集线器

B． 交换机

C． 路由器

D． 网关
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