this book is a rectangle.(划线部分提问)A triangle has (three)side.

问题描述:

this book is a rectangle.(划线部分提问)A triangle has (three)side.(提问)
1个回答 分类:英语 2014-10-11

问题解答:

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What shape is this book?
How many sides does a triangle have?
 
 
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