很好的借口,却得不到回报。
But the monkeys had no way to tell which reward or punishment was associated with which response.
但猴子们无法得知哪个奖励或惩罚对应于哪次回答。
So the reward helps, but the reward is in no sense necessary.
因此,奖励有所帮助,但并非必须。
So the reward helps, but the reward is in no sense necessary.
因此,奖励有所帮助,但并非必须。
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