题目

.以下列各组数为边长，能组成直角三角形的是(  ) A.8，15，7        B．8，10，6    C．5，8，10     D．8，3，40 答案：B 根据对话内容从方框中选择能填入空白处的最佳选项补全对话，其中有两项多余。A: Here is a computer.B: Yes. You can search for information about our school on it.A:1.B: Have a try.A: Great. 2. B: It's a map of our school.A: 3.B: Ten.A: 4.B: Yes. There are five computer rooms in it.A: 5.B: This way, please.A. What a big school!B. Really?C. How many buildings are there in your school?D. There are two classroom buildings.E. What’s this?F. Let’s go to have a look.G. Is this your science building?A. What a big school!B. Really?C. How many buildings are there in your school?D. There are two classroom buildings.E. What’s this?F. Let’s go to have a look.G. Is this your science building?