结果：基本药物“零差价”等政策的推行，有益于基本药物普及。
Results: The policy of zero-difference sale of essential drugs was good for the spread of the essential drugs.
商品的批发价格低于零售价格，即存在着批零差价，其差额由零售企业所耗费的流通费用、税金和利润构成。
Wholesale price less than the retail commodity price, that there are wholesale and retail price difference, the difference is spent by the flow of retail business costs, taxes and profits composition.
“分销会员”主要靠差价获得收入，对个人来说，是一种“零风险”的创业模式。
"Distribution of membership" mainly depends on the price difference income, for one, is a "zero risk" business model.
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