Where is paper first made? What is true about pencils in this text?

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问题 Where is paper first made?
What is true about pencils in this text?

选项 A、It is made of wood only.
B、It is made of graphite only.
C、It has erasers.

答案C

解析 本题目问以下有关铅笔的那个是对的,应该用排除法。A和B都是错的,因为铅笔不只只有木头或石墨,而是两者均有。C是对的,第四段中提到铅笔上有橡皮。
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