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中三-期望值

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最佳解答:

1. 180*2/6 = 60 2. 225*0.02 = 4.5 = 5 (round off) 3. 150*1/30= 5 2012-03-21 10:09:48 補充: 1. 180*2/6 = 60 2. 225*0.02 = 4.5 = 5 (round off) 3. 150*1/30= 5

其他解答:

請Acceler寫入答案4E350C6F8B48ECA2
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