It is a one-day life of Wei Hua. She gets up before 7:00 in the1 and quickly2her face. She goes to school early. She3hard（努力地） in class（在课堂上） all day.She4basketball after school, and then5home.

    Wei Hua's6is  broken(坏了) in Maths lesson, so he needs a new one. On her way home（在回家的路上）, she buys a new pen at a7When she8home, she has a short9After that she10her parents. She cooks supper and11the house.

    She watches TV for half an12after supper. Then she starts her homework. She finishes it13half past nine. She goes to14before a quarter to ten. How15Wei Hua is!

为什么牛顿盘是属于费力轮轴？

用图像来描述物理过程或物理规律是很直观的。如图（a）一立方体木块，下面用一段细线与之相连，细线另一端固定在在容器底（容器高比细线与木块边长之和大得多）。现向容器中慢慢加水，如图（b）所示。若细线中的拉力用F表示，容器中水的深度用h表示。那么，在图中可以正确描述拉力F随随深度h的变化关系的图像是（  ）

我国公民行使国家权力、参与国家管理的一项最基本的政治权利是（  ）