根据时间价值的概念，在利率为3%时，现在的1000元与3年后的( )

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问题单项选择题

根据时间价值的概念，在利率为3%时，现在的1000元与3年后的( )元是等值的。

A．1000
B．1030
C．1130
D．1093

答案

参考答案：D

解析： 1000×(1+3%)³≈1093(元)

句型转换

按要求完成下列句子。

1. The students should wear their uniforms at school. (改为同义句)

The students are _____ _____ wear their uniforms at school.

2. His father went out and didn't say a word. (改为同义句)

His father went out _____ _____ a word.

3. Wei Hua has learned two kinds of foreign languages by herself. (改为同义句)

Wei Hua has _____ _____ two kinds of foreign languages.

4. Yesterday he received Tom's e-mail. (就划线部分提问)

_____ did he _____ e-mail?

5. You are supposed to bow in Korea. (改为否定句)

You _____ _____ to bow in Korea.

单项选择题

多一个消费者引起的社会边际成本为零，是（）

A.竞争性

B.排他性

C.非竞争性

D.非排他性