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It needed 7 to 10 days for establishing stable operational conditioned reflex with the rabbits.
大约7 ~10个训练日便可使家兔建立起巩固的操作式条件反射。
youdao
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It needed 7 to 10 days for establishing stable operational conditioned reflex with the rabbits.
大约7 ~10个训练日便可使家兔建立起巩固的操作式条件反射。
youdao