A. He thinks computer games might not always sell so well. B. He wants to stop working when he is a millionaire(百万富翁). C. One has to be young to write computer programs. D. He thinks his company might close down. 参考答案:A 答案解析:[解析]从文章最后一段最后两句：I would like to earn a million and I sup- pose early retirement is a possibility．You
第20题: [单项选择]The author implies that the Fourteenth Amendment might not have been enacted if ______. 参考答案:D 答案解析:从文章第一段制定Fourteenth Amendment，prohibits state governments from denying citizens the“equal protection
第21题: [单项选择]食品细菌污染主要指什么细菌对食品的污染（）。 A. 致病性细菌 B. 相对致病性细菌 C. 非致病性细菌 D. 需氧菌 E. 厌氧菌 参考答案:A 答案解析:食品细菌污染主要指的是致病性细菌对食品的污染，另外也有相对致病菌和非致病菌。
