标题:
請教 JJ 150
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作者:
telecoming
时间:
2012-2-8 06:31
标题:
請教 JJ 150
2tu
是个三位数,
9 is a factor of 2+t+u
?
1
)
9 is a factor of u
2
)
3 is a factor of 2tu
有可能算的出來嗎?
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