A.資源依據(jù) B.環(huán)境依據(jù) C.社會(huì)依據(jù) D.經(jīng)濟(jì)依據(jù)
A.經(jīng)濟(jì)發(fā)展 B.環(huán)境改善 C.社會(huì)進(jìn)步 D.以上都是
A.1973 B.1992 C.1976 D.1985