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问题 填空题
按要求把下列单词分类。
A. pencil          B. ruler          C. purple          D. head          E. red 
F. shoulder      C. eraser        H. yellow          I. knee           J. sharpener
1. 颜色：                                                           
2. 身体：                                                           
3. 文具：                                                           
答案

1. 颜色：CEH

2. 身体：DFI

3. 文具：ABGJ

问答题 简答题

简述磨矿作业在选矿中的作用？
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选择题

—Tom wants to know if you will have a picnic tomorrow.

—Yes. But if it ______, we’ll play chess instead.

A．will rain

B．rained

C．is raining

D．rains
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