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问题 判断题

期权交易是针对某种具体权利，即买权或卖权的买卖，而买方只能执行期权。

答案

参考答案：错

解析：期权交易是针对某种具体权利，即买权或卖权的买卖。买方有权执行期权，也可放弃行权，因此期权也称为选择权。

阅读理解
人们常常喜欢用一些英语名言来作为自己的座右铭，请根据以下信息，给下面5个人选择合适的座右铭来配对。
1.Ann works hard at English. She never wastes time.
2.Bill is always afraid of failing exam . He needs more confidence.
3.David has good study habits. He thinks the beginning is very important.
4.Linda is 70 years old, but she still likes learning something.
5.Tom wants to be a professional basketball player, but he can’t play it very well.
A. Practice makes perfect.
B. Every minute counts.
C. Failure is the mother of success.
D. A good beginning is half done.
E. It is never too old to learn.
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单项选择题

在常温常压下，可燃物不需要外界加热，而是依靠特定条件下自身的反应放出的热量引起的着火，称为( )。

A．蓄热自热着火

B．相互接触化学自热着火

C．物理自热着火

D．化学自热着火
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