7. 结论
8. 参考文献
<参考文献>
1. How Bitcoin works(https://www.coindesk.com/bitcoin-explained)
2. When will the bitcoin bubble burst?(https://www.theguardian.com/technology/2018/feb/13/bitcoin-bubble-suspect-trading-activity-suggests-run-up-was-artificial)
3. Cryptocurrency Bubble Warning: A Radical Shake Up Is Possible(https://www.washingtonpost.com/news/wonk/wp/2017/12/21/cryptocurrency-bubble-warning-a-radical-shake-up-is-possible-in-the-money-world/?utm_term=.0927a0b6902b)