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App Description
怎么样让踩扁的乒乓球恢复原状呢？自然界中有许多物体都有热胀冷缩的性质，点选你想认识哪个物体的热胀冷缩呢？最后再来找找看，画面中有哪种东西也有热涨冷缩这种神奇现象呢？
课程进度 : 大班-七月份-第一周
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App Changes
- May 04, 2015 Initial release
- October 15, 2015 New version 1.1
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