题目

听下面一段较长对话，回答以下小题。【1】What are the speakers mainly talking about?A. A city tour. B. Weekend plans. C. Japanese food.【2】Where will the speakers meet on Saturday night?A. At the woman’s house. B. At a concert hall. C. At a Japanese restaurant. 答案：【答案】【1】B【2】A【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。已知为第二象限角，且，求的值．