阅读理解。判断对错。

      Hi. I'm Tom. I'm a boy. I get up at 6:30. I eat breakfast at 7:00. I go to school at 7:00. I have English class at 8:00. At 9:00, it's time for match class. I have music class at 10:00. I eat lunch at 12:00. It's time for PE class at 1:30. I go home at 4:00. It's time to go to bed at 9:00 p.m. it's my day. How about you？

请阐述雅典民主政治的范围、三个阶段和性质，并客观评价雅典的民主制度。

据图回答：

作图题：

（1）如图1所示的电路未画完整，请你在图中的①②的缺口处选择开关与灯泡的电路元件的符号填上，并把③处的三孔插座连接好．

（2）图2磁体旁小磁针静止时所指的方向如图所示，画出通过小磁针中心的一条磁感线，并标出磁体的N、S极．

把蜡烛放在距离凸透镜50cm处，在透镜另一侧的光屏上观察到倒立、缩小的清晰像．那么凸透镜的焦距不可能是（　　）