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 1.二下理化1-1習題解析
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Author: user
Views: 3476
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Uploaded: 2011-02-21
48:40
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Author: 蔡宇
Views: 2708
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Uploaded: 2010-12-28
54:15
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Author: 蔡宇
Views: 2379
Discussion: 0
Uploaded: 2010-12-17
38:50
Outline:
 1.26.下列何者有應用到凸透鏡?投影機、手電筒、電影放映機、望遠鏡、萬花筒、幻燈片放映機、顯微鏡、照相機、汽車的車前燈、放大鏡。A.5項 B.7項 C.9項 D.10項
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Author: 蔡宇
Views: 2847
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Uploaded: 2010-12-08
1:00:14