题目

听下面一段较长对话，回答以下小题。【1】What was the woman's life like in high school?A.Stressful. B.Meaningful. C.Boring.【2】Which sport did the woman like most?A.Playing basketball. B.Swimming. C.Skiing.【3】What are the speakers mainly talking about?A.High school life. B.Plan for the future. C.Hobbies. 答案：【答案】【1】B【2】C【3】A【解析】【原文】此题为听力题，解析略。函数的定义域是A． B． C． D．