A.多樣,迥異B.多樣,一致C.單一,迥異D.單一,一致
A.市場(chǎng)障礙B.經(jīng)濟(jì)障礙C.信息障礙D.制度障礙
A.對(duì)峙B.共存C.無關(guān)D.相關(guān)