easy, one minutes i solve the problem 1 g$ |7 K$ a" D, \) |divide into half, mean 6/ 6公仔箱論壇) W3 \: p% j5 d; F+ a5 c
take the heavier 6 ping pong {, D u. h& z( ~4 \* A
divide into 3/3, take the heavier 3公仔箱論壇) _0 H( r" P/ ~ L
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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