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问题 填空题

对同一段文字进行多种方式的汇总，称为______。

答案

参考答案：嵌套汇总

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. But I argued with my best friend yesterday.
B. That's not easy.
C. I'll try to apologize to her.
D. What should I do?
E. What can I do for you?
F. That's  a good idea.
G. I don't have enough time.
A: I want to get good grades.    1  .
B: Maybe you could take part in after school  classes on weekends.
A:   2   I have to do my homework onweekends.
B: Well, you could ask your friends for help.
A:   3  
B: You should say sorry to your friend.
A: OK.   4   
B: I think you shouldn't play computer games or watch TV any more.
A:   5    I'll study harder and harder from now on.
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填空题

液体内部某一点的深度是从______的竖直高度．
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