超级火山真正末日下载:脑筋急转弯 ,。。。。

来源:百度文库 编辑:杭州交通信息网 时间:2024/05/01 09:26:43
Each baker can bake 2 cakes in 20 minutes.
If 4 bakers are working, how many cakes are baked in 2 hours

30