题型:填空题 某国产骄车每行驶100km消耗10L汽油,汽油的密度为0.72×103 kg/m3,则汽车行驶50km消耗的汽油的质量为 kg.当该汽车以50kW的功率,在平直公路上以72km/h的速度匀速行驶时,它所受到的阻力 N. 查看答案
题型:补全对话,情景问答 从方框中选择最佳选项完成对话,有两项多余。A. That's good idea. B. I'm calling to thank you for your present. C. Yes, very much.D. Well, I saw many old things on show. E. I called you yesterday, but you were not in. F. How was your trip?G. When did you go there?A: Hello, Jim. This is Ann speaking.B: Hi, Ann.A: 1____B: Do you like it?A: 2____ It's a beautiful sweater. I really like the color.B: I think the blue is just the right color for you. By the way, you looked wonderful at the party.A: Thank you. I really enjoyed it. 3____ B: Oh, I'm sorry. I went to the Science Museum.A: What did you see?B: 4____ A: Wow! Are there any new things?B: Yes, many more! Why not go there and have a look?A: But I don't know the way to the museum.B: Don't worry. I'll go with you.A: Great! Thanks. 查看答案