How dare you question geometric principle - 3 points define a pl

本帖于 2010-07-15 15:50:56 时间, 由超管 论坛管理 编辑
回答: If you are young, you can do both 1 and 2.3-leg-man2010-07-15 11:13:54

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3 points define a plane :))) -3-leg-man- 给 3-leg-man 发送悄悄话 (0 bytes) () 07/15/2010 postreply 12:01:54

a plane has two sides. haha. -herwife- 给 herwife 发送悄悄话 (0 bytes) () 07/15/2010 postreply 12:07:37

回复:a plane has two sides. haha. -3-leg-man- 给 3-leg-man 发送悄悄话 (451 bytes) () 07/15/2010 postreply 12:16:37

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