Based on the assumption of stochastic customers' arrival, stochastic model is divided build for sale policy for bookstores with and without sale duration limited.
基于顾客随机到达的假定，分别建立了无销售期限和有销售期限的书店销售策略的随机数学模型。
2
Look at the arrival of the first two days of travel tickets should be able to buy the normal, and then look at the situation in the future should not be pre-sale tickets.
这样看来临出行前两天的车票应该是可以正常购买的，往后的车票现在看情况应该是不能预售的。
3
Galaxy are upset because Beckham's England return will hit his availability - after the announcement of his arrival next season sparked the sale of thousands of season tickets.