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Michael Pettis's Blog 郎咸平:汇率大战二阶段即将开始 中国可能继续惨败
回答: 过水断面上充满了液流质点,每个液流质点的单位势能和单位动能都相等。 ..... 只要 中有一个不等于零,流动就是有旋运动
由 marketreflections
于 2010-09-18 16:37:19
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