Peter's fear of the animals which were shown him was probably not a directly conditioned fear.
彼得对动物的恐惧可能不是直接条件反射。
-- Mary C. Jones 玛丽·琼斯
Peter's fear of the animals which were shown him was probably not a directly conditioned fear.
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Peter's fear of the animals which were shown him was probably not a directly conditioned fear.
彼得对动物的恐惧可能不是直接条件反射。
-- Mary C. Jones 玛丽·琼斯
