Ariana:
Where are you calling from? <a href=" http://www.davehebb.com/vistagra-50.pdf#game ">vistagra 50 tab</a> To make it simple, computers are searching for matches of block chains and it takes a lot of processing power to do it and when you get a match you own that Bitcoin. People mine Bitcoins and they either keep them, own Bitcoin, or they sell them, exchange them for dollars or yen or they conduct transactions with them.
    Ariana写于2015/5/7 8:13:19