如图，一次函数y=﹣x+2的图象与两坐标轴分别交于A、B两点，点C是线段AB上一动点，过点C分别作CD、CE垂直于x轴、y轴于点D、E，当点C从点A出发向点B运动时（不与点B重合），矩形CDOE的周长（   ）

贝贝随父母去了一个欧洲国家旅游,这个国家风情浪漫,葡萄酒远销世界各地,是世界时装中心和香水之国。请问他们去的是下列哪一个欧洲国家  (    )

只因为自己长得有点儿丑，一重点中学的女生14岁的小宁自闭在家不愿见人，甚至两年不敢照镜子。 

阅读后，请回答：

A

    Skin­diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the moon. When you are under the water, it is easy for you to climb big rocks, because you are no longer heavy.

    Here, under the water, everything is blue and green. During the day, there is plenty of light. When fish swim nearby, you can catch them with your hands.

When you have tanks of oxygen on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

    To catch fish is one of the most interesting parts of this sport.

    What's more, there are more uses for skin­diving. You can clean ships without taking them out of water. You can get many things from the deep sea.

    Now you see that skin­diving is both useful and interesting.

2016年3月，十二届全国人大四次会议在北京召开，会议听取和审议了***的《政府工作报告》；审查和批准了2015年国民经济和社会发展计划执行情况的报告与2016年国民经济和社会发展计划；听取和审议最高人民法院工作报告和最高人民检察院工作报告。由此可见（  ）

①全国人民代表大会实行民主集中制原则

②全国人大与“一府两院”互相监督

③全国人大依法行驶最高决定权、最高监督权

④全国人大是最高国家权力机关，有权决定国家