赛车稳赢扣扣345177信誉不错简介:The specified number of lottery balls are blown out in sequence, and the power is automatically turned off after the lottery is over. Blow out one cubic centimeter of air. Calculate the probability that the results are consistent.
The specified number of lottery balls are blown out in sequence, and the power is automatically turned off after the lottery is over. Blow out one cubic centimeter of air. Calculate the probability that the results are consistent.