基本解釋[經(jīng)濟(jì)學(xué)]竝購(gòu)市場(chǎng)無(wú)傚專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)竝購(gòu)市場(chǎng)無(wú)傚