阅读短文，选择正确的答案。

      Wang Li has some backpacks. One is heavy. It's red. There is an English book in it. One is heavier. It's

green. Some pencils are in it. There are many apples in the heaviest backpack. It's yellow. One day she lost

her green backpack. She took a bus to the police station. The policeman found her backpack.

1. How many backpacks does Wang Li have?

A. One.

B. Two.

C. Three.

2. What colour is the heavier backpack?

A. Yellow.

B. Green.

C. Red.

3. Who found Wang Li's backpack?

A. Policeman.

B. Friend.

C. Teacher.

4. What's in the heaviest backpack?

A. An English book.

B. Some pencils.

C. Many apples.

5. How did she go to the police station? 

A. By subway.

B. By bus.

C. By bike.

近年来，我国国有企业改革取得重大进展，国有经济实力增强，经济效益提高，国有经济有步骤地向国民经济重点行业和重点企业转移。根据经济学知识完成下列各题。

国有经济有步骤地向国民经济重点行业和重点企业转移（）

A.是价值规律的客观要求

B.有利于增强国有经济对国民经济的控制力

C.说明一切反映社会化生产规律的经营方式都可以利用

D.背离了价值规律的客观要求