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A: The main year is no cost, and It truly is S$thirty each year thereafter. You are able to request a payment waiver by means of the DCS Cards app, issue to acceptance.以太坊上包含两类账户，普通账户和合约账户。普通账户是由用户通过私钥控制，而合约账户是由部署在以太坊上的智能合约控制。【附�