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问题 单项选择题

如果整个投资市场的平均收益率为20%，国家债券的收益率为10%，而房地产投资市场相对于整个投资市场的风险相关系数为0.4，房地产投资评估的模型所用的折现率为（）。

A．8%

B．4%

C．14%

D．12%

答案

参考答案：C

填空题

单词拼写。

1. Thomas Edison was a great American i______.

2. Some people even put up stockings for their p______ as well on Christmas Eve.

3. Dumplings are the most t______ Chinese food in the Spring Festival.

4. A writing brush is made of b           and animal's hair.

5. English is used very w______ as a foreign language.

6. There is a very special dinosaur on d______ in the museum.

7. Please tie the tree to the top of the stick to keep it s______.

8. The trees in the forests can keep rain drops from hitting the s ______ directly.

9. When we talk about the u______, we mean the earth, the sun, the moon and the stars, and the space

    between them.

10. Most countries use satellites to send and r______ messages.

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单项选择题

在窗体上画一个名称为CommonDialog1的通用对话框，一个名称为Command1的命令按钮，要求单击命令按钮时，打开一个保存文件的对话框，该窗口的标题为“Save”，缺省文件名称为“SaveFile”，在“文件类型”栏中显示*txt，则能够满足上述要求的程序是（ ）。

A． java

B． javac

C． javap

D． javadoc
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