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Scoop, Seesaw, and Raise: A Book about Levers (paperback)
原價:
HK$100.00
現售:
HK$95
節省:
HK$5 購買此書 10本或以上 9折, 60本或以上 8折
購買後立即進貨, 約需 18-25 天
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商品簡介 |
Provides examples to describe levers as simple machines used to lift, push, or move a load. Includes an activity. |
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