给你9张牌,然后让你在心中记住那张牌,然后电脑分组让你猜你记住的牌在第几组,然后猜出你记住的那张牌.出自儿童时的一个小魔术

-Give you nine cards, then let you in mind remember that card, then the computer groups let you guess you remember the cards in the first few groups, then guess you remember that card.

A little magic from children when