A.經(jīng)濟(jì)發(fā)展 B.社會(huì)福利 C.小康社會(huì) D.健康老齡化 E.扶助老人
A.1957 B.1967 C.1977 D.1987 E.1997
A.1:17 B.1:25 C.1:2.7 D.1:37 E.1:57