材料二：《中共中央关于构建社会主义和谐社会若干重大问题的决定》中明确指出：“社会公平正义是社会和谐的基本条件，制度是社会公平正义的根本保证”。
（1）材料一反映了我国经济发展中哪些现象？
                                                                                                                                                              
                                                                                                                                                              
（2）结合材料，谈谈维护社会公平的重大意义。
                                                                                                                                                              
                                                                                                                                                               
（3）你了解国家正在采取哪些措施促进社会公平？（不少于两个方面，不必展开）