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单选题
What does Paragraph 3 mainly talk about?
A
The effective use of cigarette ends.
B
The process of recycling cigarette ends.
C
The difficulty in recycling cigarette ends.
D
The reason for breaking down cigarette ends.
参考答案
参考解析
解析：
根据文章第三段首句“So how do you go about turning all those poisonous ends into something useful?”可知，本段主要讲述如何才能把这些有毒的烟头重新再利用的过程。
根据文章第三段首句“So how do you go about turning all those poisonous ends into something useful?”可知，本段主要讲述如何才能把这些有毒的烟头重新再利用的过程。
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