A.農(nóng)業(yè)經(jīng)濟(jì) B.工業(yè)經(jīng)濟(jì) C.生物經(jīng)濟(jì) D.信息經(jīng)濟(jì)
A.60% B.10% C.30% D.80%
A.塑料 B.橡膠 C.合成纖維 D.涂料