The us dollar is the Formal currency of The usa and several other international locations. The Coinage Act of 1792 launched the U.S. dollar at par with the Spanish silver greenback, divided it into a hundred cents, and authorized the minting of cash denominated in dollars and cents. 智能合约是存在于以太坊区块链上的计算机程序。它们仅在由用户发出的交易触发时执行。智能合约使以太坊在功能... https://afundirectory.com/listings12705478/how-much-you-need-to-expect-you-ll-pay-for-a-good-adree-trx-tron