单选题：From the second paragraph, we know that __________.

题目分类：理工类
题目类型：单选题
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题目内容：

From the second paragraph, we know that __________. A．A　Cousteau did not like any scientific definitions
B．B　Cousteau wrote many adventure-filled stories
C．C　Cousteau's main job was protecting environment
D．D　Cousteau's contributions were not limited to science and engineering

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答案解析：

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根据听到的材料，回答题。What is the talk mainly about?

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分类：理工类题型：单选题