在word里，在大纲视图方式下，可以看清标题的上下级关系，并对其进行（）或（）操作。
参考答案：升级；降级
用break构成的短语的适当形式填空
1. How did the talk ?
2. Hearing the good news, all the students present cheers.
3. I don't know why he in the middle of a sentence,
4. Modern music the old traditional rules.
5. They decided to the partnership.
6. The car halfway to the destination(目的地)．
7. It's wrong of him to his friends.
“十年树木，百年树人”这体现了教师劳动的（）
A.空间的广延性
B.时间的连续性
C.周期性
D.示范性
