Maria is my friend. She had bad1 two years ago. She got up late and had 2 for breakfast. She disliked doing school activities. After getting home from school，she usually played computer games and 3 she watched TV. She hardly ever drank milk，and she ate junk food three 4 five times a week.

    Then one day，she got sick. She had to be in hospital5It made her feel that she must 6 herself well.

    Now Maria has7habits. She gets up early and 8every morning. She usually runs for about an hour. Then she has a9breakfast. At school she plays all kinds of sports. She hardly ever plays computer games or watches TV. She drinks a cup of milk before going to bed. These good habits 10 her keep healthy and study well.

如图，升降机内有一固定斜面，斜面上放一物体，开始时升降机做匀速运动，物块相对斜面匀速下滑，当升降机加速上升时物块与斜面间的正压力将____（填增大或减小）。

青春是多彩的，又是矛盾的。下列不属于青春期矛盾主要表现的是（    ）

①独立性和依赖性的矛盾          ②自制性和冲动性的矛盾

③开放性和封闭性的矛盾          ④主动性和被动性的矛盾