请你根据实物电路，在方框中画出电路图．
先画出电源符号，从电源的正极出发依次画出开关、灯泡L1、灯泡L2回到负极即可，如下图所示：
阅读理解，选择正确的答案。
Hello! My name is Betty. I am a girl. I am nine years old. Today is Sunny. I go to school at 7:30. I work
hard at school. I like reading books. Kim is my good friend. She likes playing ping-pong. Now, I am in the
library. She is playing ping-pong with Steven in the gym.
1. Is Betty a boy or a girl?[ ]
A. A boy.
B. A girl.
2. How old is Betty?[ ]
A. Nine.
B. Ten.
3. What's Betty's friend's name?[ ]
A. Kim.
B. Steven.
4. How's the weather today?[ ]
A. Snowy.
B. Sunny.
5. What does Kim like to do?[ ]
A. She likes to play ping-pong.
B. She likes to read books.
一组数据－2、0、－3、－2、－3、1、x的众数是－3，则这组数据的中位数是 ．
