The investment proposal was meticulously worked out and even...这道题应选哪一项,4个选项有什么区别The investment proposal was meticulously worked out and even if the worst scenario happened the investors would still be sure of a fair ( ) of profits.A periphery B border C frontier D margin 英语
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【答案】 D,边际利润 margin of profits 追问： 这4个选项有什么区别呢