what are cryptocurrencies backed by, Knowledge graph

The volume of the two cities is 80 billion! ! ! The turnover of the two cities was 1.88 trillion yuan, which was slightly insufficient. In the afternoon, Internet finance and consumption were pulled, and the index closed red, making it difficult for accounts to make money! ! ! I look forward to the favorable policies of the economic conference tonight! ! !It is difficult for the market to make money. Financial consumption pulls the index: 301,000 Zhaomin Technology/301,617c Boyuan/430,478 Aiyi Pharmaceutical Changyang daily limit? The millet economy has reached a new high, and the robot is the first tone!

It is difficult for the market to make money. Financial consumption pulls the index: 301,000 Zhaomin Technology/301,617c Boyuan/430,478 Aiyi Pharmaceutical Changyang daily limit? The millet economy has reached a new high, and the robot is the first tone!It's hard to make money with index red: let's take a dangerous photo tomorrow. Pay attention to bargain hunting: 301000 Zhaomin Technology /301617C Boyuan /430478 Aiyi Pharmaceutical Changyang daily limit?It is difficult for the market to make money. Financial consumption pulls the index: 301,000 Zhaomin Technology/301,617c Boyuan/430,478 Aiyi Pharmaceutical Changyang daily limit? The millet economy has reached a new high, and the robot is the first tone!

It is difficult for the market to make money. Financial consumption pulls the index: 301,000 Zhaomin Technology/301,617c Boyuan/430,478 Aiyi Pharmaceutical Changyang daily limit? The millet economy has reached a new high, and the robot is the first tone! ! !The volume of the two cities is 80 billion! ! ! The turnover of the two cities was 1.88 trillion yuan, which was slightly insufficient. In the afternoon, Internet finance and consumption were pulled, and the index closed red, making it difficult for accounts to make money! ! ! I look forward to the favorable policies of the economic conference tonight! ! !