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魔术师请观众选一张牌(不需强制)，然后可以签名在牌上，然后把牌放回牌中洗乱，魔术师说第一张牌就是观众的牌，打开竟然错了，然后魔术师把牌放进牌中间，然后慢慢推出，竟将不是的牌变成观众签名的牌!!
不可能的交换!!效果神奇!!
大魔竞刘谦的表演~先来看看效果吧!!~
http://www.youtube.com/watch?v=XsNpOvRziH0&feature=related
https://tv.sohu.com/v/dXMvMTE0NjA4MTY3LzUzNjk4MzAwLnNodG1s.html?spm=a2h0k.11417342.soresults.dtitle
日本魔术师其他三种变法演示:
Converter
A spectator selects a card, and returns it to the deck. Another card is taken from the deck, and inserted at the middle of the deck from the side. When the card comes out from the other side of the deck, it is changed to the card that the spectator has selected!
Comes complete with gimmick and detailed instruction sheet.
