The outermost player passes the ball layer by layer to the inner player. There are three players on the first layer, four on the second layer and three on the third one. How many kinds of passing methods are possible?
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数学PS
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The outermost player passes the ball layer by layer to the inner player. There are three players on the first layer, four on the second layer and three on the third one. How many kinds of passing methods are possible?
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正确答案: E