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{| class="1https://cn.bing.com/images/search?view=detailV2&ccid=1jtl3c30&id=F7F4B1E7FA930E3772EBCA40993D5C625F350E99&thid=OIP.1jtl3c30obUIXX5VWZEFFgHaE7&mediaurl=https%3a%2f%2fpic1.zhimg.com%2fv2-1029220f0bc86f11f0a326dca6feabb9_r.jpg&exph=843&expw=1265&q=%e5%95%86%e5%93%81%e6%b5%81%e9%80%9a%e8%bf%87%e7%a8%8b&simid=607994548661589590&FORM=IRPRST&ck=287DB82A61C56530586B1FC07DB873C7&selectedIndex=117&ajaxhist=0&ajaxserp=0" style="float:right; margin: -10px 0px 10px 20px; text-align:left"|<center>'''2商品流通过程'''<br><imgsrc="3 https://pic1.zhimg.com/v2-1029220f0bc86f11f0a326dca6feabb9_r.jpg " width="280"></center><small> 圖片來 自4自优酷</small>
|}
'''宏观经济学概念'''