基本解釋[新聞學與傳播學]供應(yīng)競爭伸縮性詞組短語短語competing -supply elasticity 供應(yīng)競爭伸縮性competing supply elasticity更多詞組專業(yè)釋義新聞學與傳播學供應(yīng)競爭伸縮性