Hello! My name is Tom. I1in Huangdu Middle School. My school is not new2beautiful. My teachers and classmates are nice to me. I love3very much.

    Our first class is48:00. We have four5in the morning and three in the afternoon. We have some6like English ,Chinese, math, art, but I don't like geography because it's not very7. Do you think so?

    I have lunch with my friends at school. Then we go to the8to read some books. After school, we like9basketball. I have a good10at school . I love my school.

在正方体ABCD﹣A₁B₁C₁D₁中，M为棱A₁B₁的中点，则异面直线AM与B₁C所成的角的大小为　____ （结果用反三角函数值表示）．

2014年2月7日，国务院常务会议决定,在2020年前,在全国范围内，全面建成公平、统一、规范的城乡居民 制度,使全体人民公平地享               。 （）