问题 问答题 简答题

什么是市场失灵,发达国家市场失灵的表现有哪些?

答案

参考答案:

所谓市场失灵是指在市场经济条件下,当市场体系在某些方面不能有效地满足人们生活和生产的需要,或者市场体系在某些方面造成不良后果而又不能由其自身矫正时的一种现象。市场失灵也称“市场欠缺”或“市场失效”。

市场失灵主要表现为:

其一,不能有效提供公 * * 品;

其二,不能矫正某些产品带来的外部性;

其三,不能矫正收入分配中不公平的现象;其四,难以维持经济的稳定协调发展。

阅读理解

阅读理解。

     One afternoon little David was playing with his friends in the street when he was hit by a motorcycle.

He fell and broke his arm. And he was immediately taken to a hospital. There a doctor operated on his arm

and put it in a cast (石膏)-David couldn't move it at all.

     "You must keep your arm in the cast for a month," the doctor said. "That will give your arm a chance

to become healthy again."

     At the end of a month David went back to the hospital. The doctor cut the cast and took David's arm

out of the cast.

     "Can you move your arm, David?" he asked.

     David tried to move his arm. At first it was difficult, but soon he could move it easily.

     "Yes, it's fine," he said. "Thank you very much."

     "In a few days it will be as good as new," the doctor said. "Just exercise it a little."

     "Will I be able to play the violin?" David asked.

     The doctor smiled. "Of course you will," he said. "You'll have no problems."

     "That is good news," David said happily. "Because I couldn't play it at all before."

1. How was David's arm broken?

A. He hurt it himself.

B. A motorcycle hit him.

C. His friend broke it.

D. He fell off a motorcycle.

2. He had to keep his arm in a cast for about _____ days.

A. twenty

B. thirty

C. forty

D. fifty

3. The doctor told David to _____ after the cast was taken off.

A. keep his arm still

B. play the violin

C. exercise his arm a little

D. ride a motorcycle

4. At last David was pleased because _____.

A. he would get a violin

B. he would not have to play the violin again

C. he would play the violin with his friends

D. he thought he would be able to play the violin

单项选择题 B1型题