____是一个人最宝贵的财富。

完形填空。
Dear friend,
     I am 1 American school girl. My name is Alice Green. I am twelve. I 2 two brothers. My brothers and I 3 all at school. We go to school 4 Monday 5 Friday. We 6 have classes on 7and Sunday. We don't go to school on weekends. My father and my mother are teachers. They say China is great. I like 8, and I can sing a lot of songs. My brother and I like baseball and basketball. 9do you like? Let's10friends. Please write soon.
Yours,
Alice Green

垂直作用在物体____并指向物体的力叫压力，压力可以使物体发生____，物体____上受到的压力叫压强．

92，93，88，76，105，90，71，103，92，91