Which of the following would NOT be an example of public goods as described in the passage?

A．A taxi.

B．A bridge.

C．A fire truck.

D．A stoplight.

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参考答案

答案解析

推理判断题。
从文章第一、二段可知，公共商品是每个人都可免费享用的商品，如水坝，公路标志等。由此推知，四个选项中，桥梁、消防车、交通灯都是公共商品，只有A项不是公共商品。

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3 根据以下材料，回答题
We can make mistakes at any age.Some mistakes we make are about money.But most mistakes are about people."Did Jerry really care when I broke up with Helen? When I got that great job, did Jim really feel good about it, as a friend? Or did he envy nay luck?" When we look back, doubts like these can make us feel bad.But when we look back, it' s too late.
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