State your hypothesis or method used in the first sentence.
在第一句陈述你的假设或方法。
The first one is simple hypothesis test problem.
第一个是简单假设检验问题。
First, this paper takes a hypothesis that there are positive stress reactions.
首先，对积极压力反应的存在性进行假设。
First, this paper takes a hypothesis that there are positive stress reactions.
首先，对积极压力反应的存在性进行假设。
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