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尚志市进修学校“一题十说”

尚志市进修学校“一题十说”. 压力和压强. 尚志市希望中学 吴国成. 为什么 刃 那么薄?. 为什么 刃 那么薄?. 为什么 刃 那么薄?. 为什么那么 尖 ?. 为什么那么 尖 ?. 为什么那么 尖 ?. 为什么那么 尖 ?. 铁轨为什么铺在枕木上?. 书包带为什么是 宽 的?. (这样救人行吗?). (2). (1). F. (4). G. (3). F>G. (2). (1). F. (4). G. (3). F>G. 讨论(1)压力是怎样形成的? (2)压力方向如何?

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尚志市进修学校“一题十说”

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