题目

请认真阅读下列短文,并根据所读内容在文章后表格中填入最恰当的单词。注意：每空一词。 Many people would like to watch sport matches. First, you need to know about audience manners. Most sporting arenas （竞技场） have rules for spectators written on the back of the tickets. Read your ticket carefully before you arrive. Try to reach your seat half an hour before the start of the event and don’t leave when a game is in progress. When you leave, remember to take away your soft drink bottles and other rubbish. During exciting games, try to control 已知函数f(x)＝，则 [　　] A． B． C． D．