1. This feedback effect jointly determines the optimal contract, the propensity of market manipulation and price informativeness.
   这种反馈效应共同决定最优的合同，倾向操控市场和价格信息化。
2. From the point of view of the informativeness and textual cohesiveness of preposed theme, the stronger its informativeness, the weaker its cohesiveness, and vice versa.
   从前置主位的信息性和衔接性来看，前置主位所传递的信息新信息性越弱，其语篇衔接性越强，反之亦然。

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