题目

—How do you know about the young boy standing over there? —Oh, I heard that he is _________ captain of a football team in_______ university in our city. A . the; the B . a; an C . /; a D . /; an 答案：C20世纪中叶，一些新兴企业不愿到匹兹堡落户，其主要原因是 [　　] ①环境污染严重　②劳动力素质太低　③地价上涨　④公共设施不齐全 A．①②B．①③C．①④D．②④