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4#
發表於 2008-3-14 10:14 AM
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題目誤導人~
* w9 |# T. i. w, a) @# B: M5.39.217.77:8898owner 1001 }( }6 g+ K9 f. [
owner's son 20; k$ w/ }' ?6 K* f5 r' _9 j
each pay 40
& B9 I5 z9 M) a0 K' X40*3 = 120
9 Y4 o9 |' ]+ x3 e8 n) r( I1 o公仔箱論壇120(3 guys) - 20(owner's son) = 100 (owner) |
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