A.骨骼 B.膠原 C.軟骨 D.骨骺 E.肌肉
A.經(jīng)濟(jì)B.安全C.發(fā)展D.主權(quán)
A.農(nóng)業(yè)社會(huì)B.經(jīng)濟(jì)主義C.科技社會(huì)D.社會(huì)主義