{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to use the currency unit recommended in blockchain?","a":"Quantitative evaluation:  Use currency units to quantitatively evaluate various indicators of the project, such as cost,"}]}],"pr":"5c0280c9fc9c49492c1d34ec04c2c9bf69196d5c7740a0557803b98e918bfcfe"}