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review top exchange cryptocurrency sites 2019
A cryptocurrency exchange or a digital currency exchange (DCE) is a business that allows customers to trade cryptocurrencies or digital currencies for other assets, such as conventional fiat money or other digital currencies. A cryptocurrency exchange can be a market maker that typically takes the bid-ask spreads as a transaction commission for is service or, as a matching platform, simply charges fees.wikipediahttps://cryptocurrencyb2b.com/en/page/exchange
