1, block chain how to make money?
2, the data storage and use the separation;
3, the data assets of three changes;
Number 4, trading, why block chain is not working?
5, block chain business why not BAT?
https://www.bilibili.com/video/BV1BC4y1h7mA? P=1 & amp; Share_medium=android& Share_plat=android& Share_source=COPY& Share_tag=s_i & amp; Timestamp=1595639672 & amp; Unique_k=ibL8ON & amp; The from=timeline