分解因式：1﹣x²=____．

从环保部获悉，为了细化2016年1月1日起实施的新的《环保法》，将有50多个新文件出台作为新《环保法》的配套政策。目前，对环境违法企业的按日计罚、查封扣押和停产限产措施，以及企业环境信息公开的四项政策已制定公开征求意见。搞好环境保护，需要政府各部门（    ）

①定目标、建机制、强监督，树立求真务实的工作方法

②立足国情、科学治理、分类指导，审慎行使行政权力

③进一步转变职能，提高为经济社会发展服务的能力和水平

④广泛收集群众的意见和建议，扩大公民监督权决策权

    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?