兒子十歲會是5歲的兩倍,十五歲又會是5歲的三倍
所有跟帖:
• 計算的非常正確,讚! -阿小餅- ♀ (0 bytes) () 08/15/2010 postreply 07:02:49
• 還好,小學學的沒忘掉:) -ERommel- ♂ (0 bytes) () 08/15/2010 postreply 07:18:04
• 計算的非常正確,讚! -阿小餅- ♀ (0 bytes) () 08/15/2010 postreply 07:02:49
• 還好,小學學的沒忘掉:) -ERommel- ♂ (0 bytes) () 08/15/2010 postreply 07:18:04
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