單項(xiàng)選擇題單循環(huán)制的比賽場數(shù)等于:()

A.隊(duì)數(shù)
B.隊(duì)數(shù)+1
C.隊(duì)數(shù)-1
D.隊(duì)數(shù)×(隊(duì)數(shù)-1)÷2


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