题目

听下面一段较长对话，回答以下小题。【1】What’s wrong with Bob?A. He has a toothache. B. His arms hurt. C. His leg is broken.【2】What does the woman advise Bob to do?A. Have a cup of tea. B. Go to hospital. C. Color few boxes.【3】What is the relationship between the two speakers?A. Mother and son. B. Husband and wife. C. Doctor and patient. 答案：【答案】【1】 B 【2】 A 【3】 C 【解析】此题为听力题，解析略。【1】此题为听力题，解析略。【2】此题为听力题，解析略。【3】此题为听力题，解析略。求证：点（－1，－1）在曲线＋d= b＋c．