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.

答案是封牌，每个人在turn是，你第二大对子QQ起来像好牌，因此你在river时下。

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.

提出供应链子链概念,对子链特和组成进行了分析,阐述了以子链为单位进行考察和重要性,并提出了一种简单模型。