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问题 单项选择题

( )在股票市场上涨时提高股票投资比例，而在股票市场下跌时降低股票投资比例，从而既保证资产组合的总价值不低于某个最低价值，同时又不放弃资产升值潜力。

A．动态资产配

B．买入并持有策略

C．投资组合保险策略

D．变动混合策略

答案

参考答案：C

阅读理解

阅读理解。

     If you go to Beijing and Shanghai, you can see the same and the different points between them. In some ways they look the same, in some ways they look different. Both of them have tall buildings and wide streets, although some buildings in Shanghai are taller than in Beijing. They are both important in China. Beijing is the capital of China, there are more places of interest there, but Shanghai is the biggest city in China. Now they are becoming more and more important in China.

1. Some buildings in ______are taller than in Beijing.

A. Shanghai

B. Xi'an

C. Tianjin

D. Chongqing

2. Shanghai is the ______city in China.

A. tallest

B. biggest

C. smallest

D. busiest

3. The underlined word "point" means ______.

A. 想法

B. 点

C. 内容

D. 主意

4. Beijing has more ______ than Shanghai.

A. places of interest  

B. buildings    

C. wide streets

D. people  

5. Which of the following statements is right according to the passage?

A. Shanghai is the capital of China  

B. The buildings in Beijing are taller than in Shanghai

C. Shanghai is the largest city in China.

D. Shanghai has more places of interest
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单项选择题

某精馏塔馏出液量为5800Kg/h，残液为480Kg/h，则原料量为（）Kg/h。

A.6280

B.5320

C.5800

D.6130
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