A.腰椎 B.胸椎 C.頸椎 D.髖關(guān)節(jié) E.骶髂關(guān)節(jié)
A.經(jīng)濟(jì)B.安全C.發(fā)展D.主權(quán)
A.社會(huì)主義B.農(nóng)業(yè)社會(huì)C.科技社會(huì)D.經(jīng)濟(jì)社會(huì)