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明重点 知方法 - offcn.comm.ln.offcn.com/dl/2019/0116/20190116024452965.pdf刺激,老师减少对小马的提问次数就是撤销了小马的厌恶刺激,从而导致小马往教师后排坐的行为发生次数增加。这是
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