你必需去留心每件商品或期货合同，因为它们每一份都是唯一的。
You need to check each commodity or futures contract since each of them is unique.
本文认为，商品房预售合同不是预约买卖合同、期货买卖合同、附期限买卖合同、分期付款买卖合同，而是远期交货合同。
The kind of contract is not the ones of buying and selling of subscription or futures or paying by installments, but a contract of long-term delivering goods.
芝加哥商品交易所拥有最大的期权和期货合约平仓任何期货交易所世界(数字)的合同突出。
CME has the largest options and futures contracts open interest (number of contracts outstanding) of any futures exchange in the world.
芝加哥商品交易所拥有最大的期权和期货合约平仓任何期货交易所世界(数字)的合同突出。
CME has the largest options and futures contracts open interest (number of contracts outstanding) of any futures exchange in the world.
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