In the first study, 120 shoppers were randomly given either a bit of apple, a piece of cookie or nothing at all when they arrived at the supermarket.
在第一个研究里，120名购物者在到达超市的时候被随机给到一小块苹果，一片饼干或是什么都没给。
In the first study, 120 shoppers were randomly given either a bit of apple, a piece of cookie or nothing at all when they arrived at the supermarket.
在第一个研究里，120名购物者在到达超市的时候被随机给到一小块苹果，一片饼干或是什么都没给。
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