问题
填空题
三角形的面积一定，底和高．______．
答案
三角形的底×高=面积×2（一定），是乘积一定，它的底和高成反比例；
故答案为：成反比例．
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三角形的面积一定，底和高．______．
三角形的底×高=面积×2（一定），是乘积一定，它的底和高成反比例；
故答案为：成反比例．
| 从对话后的选项中选择适当的选项补全对话。 | |
| A: You must be really excited about leaving for London tomorrow, Judy! B: Yeah. 1______ A: Nervous about what? B: I don't know many of the customs and manners in UK. 2______ A: Sure. B: 3______ A: Well, it's important to be on time when you're invited for dinner. It's impolite to arrive late. British expect their guests to be on time. B: Then how long may I stay there? A: 4______ Or you seem to have come only for the meal. When your friends seem to be getting sleepy and running out of things, it's time to leave. The next day, call or write a thank-you note to say how much you enjoyed the evening. | |
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