如图，将薄纸片置于下唇底部，沿着纸片的上表面吹气，纸片升起，可知吹气过程空气对纸片上表面的压力　____ 　下表面的压力（选填“大于”、“等于”、“小于”），证明气体压强与流速的关系是　____ 　．

阅读下面短文，从A、B、C、D四个选项中，选出最佳选项。

    Julie is my aunt and she works at a radio station. She 1 it is an interesting job. Today I ask her about 2 life.     

    She says she is very busy from Monday to Friday. She goes to work at 7:30 and 3 at 20:00. Then she watches TV 4 half an hour. She goes to bed at 21:00. On Saturdays, she either plays tennis 5 goes swimming. They are 6 for her. What does she 7 do on Sundays? She always goes to the dance club. She is good at 8. My last question is not easy for her. I ask, “You like dancing. 9 not be a dancer?” She says, “I likes to talk to people through (通过) the 10. I can help more people in this way. Dancing is just my hobby (爱好), not my job.”