{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of test validation nodes compared to public nodes in the blockchain?","a":"Low cost and high efficiency: Test validation  nodes only use test ether when deploying contracts or conducting transactions, resulting in lower costs and higher efficiency."}]}],"pr":"6ea42004a4ecf44e387b4155f173bba735d5224479dce859bc7ae5145d4848fc"}