easy, one minutes i solve the problemtvb now,tvbnow,bttvb! T Q9 ?" l2 Q% f; e
divide into half, mean 6/ 6tvb now,tvbnow,bttvb0 M# J& h8 J9 e4 X4 L
take the heavier 6 ping pong Z9 |- K; n/ j+ V9 G+ h3 J! H5 t/ m. v
divide into 3/3, take the heavier 38 r- ~+ d. h& X* R) b6 [5 K, f4 z7 }
take the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |
發表於 2009-2-8 04:58 PM
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