勾股定理都從來沒證明過
所有跟帖:
• 三國時有證明。 -MachineMan- ♂ (0 bytes) () 10/30/2018 postreply 13:53:40
• 三國時有證明。 -MachineMan- ♂ (0 bytes) () 10/30/2018 postreply 13:53:40
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