Nature once helped people find fire. Today people make fire by burning wood or knocking two pieces of stones.

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问题 Nature once helped people find fire.
Today people make fire by burning wood or knocking two pieces of stones.

选项 A、True.
B、False.

答案B

解析 根据第四段可知现代的人们采用火柴、打火机等生火工具。所以应选B。
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