题目

听下面一段较长对话，回答以下小题。【1】Where did the woman first meet the man?A.In high school.B.In the college.C.In a chemistry competition.【2】What did the man do after high school?A.He went straight to university.B.He traveled around the world.C.He worked at a small school.【3】What is the school in Connecticut known for?A.Its famous teachers.B.Its foreign language department.C.Its low cost.【4】What does the woman mean at the end?A.It is enjoyable to study Chinese.B.It is her lifetime goal to speak Chinese well.C.It takes a long time to master a foreign language.（（本小题满分12分）某工厂生产一种产品，已知该产品的月产量x吨与每吨产品的价格（元）之间的关系为，且生产吨的成本为（元）.问该厂每月生产多少吨产品才能使利润达到最大？最大利润是多少？（利润＝收入－成本）