China is a country with a rich culture in calligraphy(书法).1computers are everywhere in our life, Chinese people should not2the skill of writing with hands.

    Now the computer can help people to write. People are3computers more often than before. So many people are forgetting how to4Chinese characters(汉字). People often make a lot of mistakes in handwriting.

    Today, China is trying to help students and teachers to5their handwriting. We6that teachers can write well_7the blackboard and students can write well on their exercise books, too. Teachers should make their teaching plans and students should_8their homework by writing with their9. We are sure our handwriting can become10and better in this way.

下列天体和天体系统中，具有从属关系，且从大到小依次排列的是（   ）

人体运动时，起动力、杠杆和支点作用的分别是  （   ）