英语自测试题三.doc

自测试题三（1） SECTION 1 　　Time - 30 minutes 　　30 Questions 　　1. 2（8-7） 2（7-8） 　　x y = 2 　　2. x y 　　3. 1 　　4. x 5 　　On Elm Street there are 6 houses on one side of the street and 4 houses on the other. Each pair of houses on Elm Street is connected by exactly one telephone line. 　　5. The total number of s