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为什么人抱东西爱用右手,抱娃娃却用左手?
索尔克认为,多数人把婴儿抱在左边, 是因为人类心脏在胸部略偏左的位置。 婴儿被抱在左边时,更容易听到父母的心跳声并因此安稳下来,这让父母安抚婴儿更加容易,所以偏好左侧。
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