It is the last day of June today. It is Grandma's birthday. Father, mother and I go to see her.

    She lives(居住) with my uncle in a village(村子). Early in the morning we buy a birthday cake and some fruit and go to her home by bus.

    Grandma and uncle are very happy to see us. We give presents(礼物)to Grandma and say “Happy birthday to you!” She is very happy. Then we sit down to talk. Uncle goes to prepare(准备)lunch. The meal( 餐) is very nice. We all like it very much. At 4 o'clock, we say goodbye and go back home.

巨晓林是一位从农民工成长起来的铁路建设者，28年来他记下了230多万字的施工笔记，研发和革新工艺98项，创造经济效益900多万元，可见（    ）

①不管什么职业，只要社会所需要就有价值     ②终身学习是个人可持续发展的要求

③科技进步是发展生产力的决定性因素            ④人才是一个国家发展最重要的资源