下列关于生活的变化的说法，正确的是(      )

①生活总是在不断变化的         ②生活总是千篇一律的

③代际之间的差异不可避免       ④生活的方式也有相承和坚守

                                                                                                                溪桥晚兴
                                                                                                                   郑协①
                                                                                         寂寞亭基野渡边，春流平岸草芊芊②。
                                                                                         一川晚照人闲立，满袖杨花听杜鹃。
                                                                                注：①郑协：南宋移民。②芊芊：草木茂盛。