is bitcoin a legal currency, Knowledge graph

Fool wisdom = value investment+main thinking!Main thinking = buying and selling logic, following the main capital movements to control positions.

Continue to attack after washing dishes?Fool wisdom = value investment+main thinking!

Value investment = an undervalued company that finds and holds sustainable profitability for a long time.Continue to attack after washing dishes?Main thinking = buying and selling logic, following the main capital movements to control positions.