河南省省长郭庚茂在部署2011年经济工作主要任务时说，新型农村社区建设要坚持群众自愿、量力而行原则，因地制宜、分类推进。推动新型农村社区建设，必须充分考虑农民的当前利益和长远生计，不能脱离实际急躁冒进。上述观点的哲学依据是（   ）

撑伞时，把伞“两侧的伞骨”和支架分别看作AB、AC和DB、DC，始终有AB=AC，DB=DC，请大家考虑一下伞杆AD与B、C的连线BC的位置关系为____ ．

选择合适的答案

①Did they go home by bike ?  ____            

②Where did you go yesterday ?  ____            

③What did you see ?   ____                    

④ Did you see a bus yesterday ?  ____           

⑤ When did your father come back ?  ____       

⑥ Do you live in London, too ?   ____          

⑦Did John eat rice yesterday ?   ____            

⑧How did you go home yesterday ?____           

⑨When did you come back ?   ____              

⑩What did she do yesterday ?  ____              

A No, I didn’t.   B Yes, he did .   C I went to the park .    D Yes, I do .

E I came back last Friday.   F No , they didn’t.    G We went home by bus .

H I saw lots of places .    I She watched TV.    J He came back last Sunday.

已知函数f（x）=$\left\{\begin{array}{c}-x^2,x\ge 0\\ x^2+2x,x<0\end{array}\right.$，则f（f（﹣2））=____ 不等式f（f（x））≤3的解集为____