比特币 Advanced PREMIUM
美元、欧元、人民币……这世界上的货币已经够多啦！出国旅游买个东西还要按汇率算钱，算来算去好麻烦，尤其对于我们这种数学不好的人～什么，有一种货币可以全球通用？太好啦！不过这种货币是虚拟的，而且现在能买的东西还比较少……嗯，先不管那么多了，赶快来了解一下这是什么货币吧！
| David, Jiaojie | |
| 2352 | |
| Advanced | |
| technology, currency, investment | |
| analyzing, ending a conversation, informing |
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