Re: [題目] 動能守恆之安全著陸問題
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推
04/20 04:58, , 1F
04/20 04:58, 1F
推
04/20 06:59, , 2F
04/20 06:59, 2F
推
04/20 08:28, , 3F
04/20 08:28, 3F
噓
04/20 10:42, , 4F
04/20 10:42, 4F
噓
04/20 11:34, , 5F
04/20 11:34, 5F
推
04/20 20:16, , 6F
04/20 20:16, 6F
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