监理工程师与业主、承包人的正式函件对各方当事人均不具有约束力。 ( )
参考答案：错
用适当的介词填空。
1. His show made quite an impression _____ the audience.
2. The teacher impressed us _____ his sense of humour.
3. The teacher impressed his sense of humour _____ us.
我国于1995年在国内的重点理工科大学把生物类的课程列为非生物专业的限选课和必修课程。（）
