The fee is the price level, vanity items and services that consumers want to buy at that time equal to the amount of goods and services that a plit to sell at the same time, the fit and the price level of goods and services that command a balance; It is called vanity fee balance.Therefore, the balance and balance price vanity at the concurrency level that is equal to the quantity of purchase the sales quantity vanity, vanity and get the balance of the said State.
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