保护和改善城市环境的正确措施是（       ）

十八届四中全会强调：深化司法体制改革，完善司法责任制度，建立公正、独立的司法制度。面对改革，人民法院和人民检察院应该（   ）

①制定与完善中国特色社会主义法律体系    ②提高执法人员的水平，公正司法、依法行政

③接受***的领导与监督            ④接受同级人大的监督，对同级人大负责

如图，已知在平面直角坐标系xOy中，点A（4，0）是抛物线y=ax²+2x﹣c上的一点，将此抛物线向下平移6个单位后经过点B（0，2），平移后所得的新抛物线的顶点记为C，新抛物线的对称轴与线段AB的交点记为P．

Mr. and Mrs. Button's house is t____ old. They want to buy a new one. Now they are t____ about a new house.

Mr. Button: How about this one, darling?

Mrs. Button: It's OK. How many floors are t____?

Mr. Button: Three floors. On the f____ floor, there is a big living room. We even can have a party here.

Mrs.: Oh, look. The k____ is so big. I can cook a big meal for you and the children every day. I like it. And it f____ south. It's so bright.

Mr. Button: Go upstairs. Oh, there are two b____ here and one s____. We can read books and surf the internet here. I like it.

Mrs. Button: How about the third floor?

Mr. Button: There is no third floor. It's o____ two floors. Do you like this h____?

Mrs. Button: Yes, I love it.