一块正方形菜地四周围了长48米的篱笆,这块菜地的面积是多少平方米?
48÷4=12(米),
12×12=144(平方米),
答:这块菜地的面积是144平方米.
用适当的介词填空。
1. There is a football match _____ the afternoon.
2. I often go to the cinema _____ my brother.
3. _____ Monday, I have six classes.
4. The magic show is _____ Dalian Hotel.
5. Thank you _____ your concert tickets.
改变驱动器列表框的Drive属性值将引发【 】事件。