My mother was telling me about how she and her family got their first television when she was young. Of course it was black and white. She said she only watched it at night. She doesn't remember watching it in the morning or afternoon.

    “When I was young we had only a few different channel(频道). I think they were channel l, 4 6, and 9. My brothers and sisters and and I would sometimes fight about which channel to watch. But we usually enjoyed the same shows, "my mother said.

    Something is different now. There are channels with only old movies, and channels with only cooking, and channels with only fishing. There is a channel for everything. It's amazing!

    Of course my mother had only one TV set at that time. These days I notice families with 2 or 3 or more television sets in their homes. I guess it stops people from fighting about which channel to choose（选择）.

    What and of TV shows do you like to watch?

如图，读济宁市简图，完成以下问题．

阶地是在地壳垂直运动的影响下，由河流下切侵蚀作用而形成，有几级阶地，就对应有几次地壳运动。下图示意某河流阶地的地形，其中等高距为20m。某地质考察队沿剖面线在①②③④⑤处分别钻孔至地下同一水平面，利用样本分析得知①⑤为同一岩层且岩层年龄较新，②④为同一岩层且岩层年龄较老。图示地区的地质地貌为（  ）