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交割合约具有交割日期,其是指交易的双方同意在指定时间也就是交割日,按指定的价格进行合约交割买卖。合约到期且未平仓时,不论合约带来盈利情况如何,都会? https://saadjfaa682116.verybigblog.com/29283081/加密货币市场-things-to-know-before-you-buy

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