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: Hi, Jim.____
B: It's a little boring. We have so many things to learn.
A: Really? Well, I love geography very much.____How about you?
B: I love this subject too.____
A: We have two computer classes every week They're very interesting.
B: Interesting? ____
A: Don't you have anything you enjoy at school?
B: ____ I love taking part in the tug-of-war contest (拔河比赛) in PE class.
A: Oh, that's exciting!
A. Yes I do. B. What's your favourite subject? C. When do you go to school every day? D. What do you think of your school life? E. But I have never done well in the exam. F. But we can't play computer games in class. G. I can learn a lot about different countries in the world in geography class. |
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=1上一点P到左焦点F1的距离为2，M是线段PF1的中点，则M到原点O的距离等于 （ ）