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The top documents tagged [old calculating machine]
Unit 3 Warming up Unit 3 Warming up Heavy! Difficult! Hard! Tired!
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Period 1 Warming up The whole class will be divided into four groups,and each group send a student to stand before the platform, who guess what the object
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With the development of science and technology, many new things have appeared in our lives. Let’s guess what they are:
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