Clearly 'free' has been a business model for many - and will continue to do so as long as the online advertising portion of the total advertising pie keeps growing (which it is forecast to).
很明显，免费已经是许多公司的商业模式，只要在线广告份额保持增长，这种模式还将继续存在。
Objective Surviing and blood supply of prefabricated induced expanded flap (PIE flap) by island fascia vascular flap were investigated in rat model.
目的在动物模型上探索岛状筋膜瓣诱导预制扩张皮瓣的存活和血供建立时限，为临床应用提供理论依据。
In particular, we successful forecast the result of "meat pie" plan that is the famous battle of WWII using the model.
依据该模型对第二次大战中著名的“肉馅计划”进行分析并得出结果。
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