Answer Fold.Everyone checking the turn made it look like your middle pair of queens might be good, so you bet the river.But the early limper's actions are suspect.

答牌，每个人在turn的看注，使你的第二大的对子QQ看起来像好牌，因此你在river时下注。

In this paper a conception of supply subchain is introduced and based on the analyses of the characteristic of the supply subchain , one simple model is support.

提出供应链子链的概念,对子链的特和组成进行了分析,阐述了以子链为单位进行考察和评价的重要性,并提出了一种简单的评价的模型。