easy, one minutes i solve the problem
9 `; ]* v3 h7 i) wdivide into half, mean 6/ 6
, \7 |7 s0 _! htvb now,tvbnow,bttvbtake the heavier 6 ping pong* R; C7 Z. r( g2 K3 O- v$ _& v }
divide into 3/3, take the heavier 3
, ^3 m5 p* f: a4 Otake 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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