easy, one minutes i solve the problemTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。# i1 I, e5 c) c, S6 _5 [1 K* P6 x9 _
divide into half, mean 6/ 6
2 \3 h" z. O# L5 b s" Rtake the heavier 6 ping pong: [9 m2 I" {5 C1 D: l
divide into 3/3, take the heavier 3
$ x: T' L1 Y7 ^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 |