第22题: [单项选择]Competition, they believe, ______ the national character rather than corrupts it. A. enforces B. confirms C. intensifies D. strengthens 参考答案:D 答案解析:根据上下文可以推测空格处是句中corrupt的反义词。strengthen强大,加强,巩固;enforce强制执行,实施,强迫,迫使;confirm证实,进一步证实;intensify加强,强化。句意