问题描述：
英语翻译
Two competitors battle each other in each match of a tournament with nine participants.What is the minimum number of matches that must occur for every competitor to battle ever other competitor.
A 110 B 36 C 45 D 55 E 72
Two competitors battle each other in each match of a tournament with nine participants.What is the minimum number of matches that must occur for every competitor to battle ever other competitor.
A 110 B 36 C 45 D 55 E 72
问题解答：
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