easy, one minutes i solve the problem; N6 g- G' E4 ?! {7 |, X
divide into half, mean 6/ 65.39.217.76/ t' \9 C7 _1 b6 v# U
take the heavier 6 ping pong
6 r; }9 Q# |3 X' _# F, ]- R( q公仔箱論壇divide into 3/3, take the heavier 3
1 `$ Y3 E; j& V, r9 e: X5.39.217.76take 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 |