然而，在研究开始时分发的表格中高度认同紫锥菊疗效、并在研究中得到安慰剂的那组病人感冒病程最短。

However, a subgroup who rated echinacea's effectiveness highly on a form at the start of the study — and were given a placebo during the study — had the shortest duration colds.

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在文中分别对细菌信息通讯中的群体感应、介质中激发波的传播、鱼群高度趋向游动和蚁群最短寻食路径的动力学行为建立了模型，并进行了计算机模拟。

The model that we have established in my paper is about Bacterial communication, the diffusion of excitation wave in medium, the dynamic behavior of fish and ant, which are all simulated on computer.

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