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标题: 大虾们帮帮 [打印本页]

作者: Mankiw    时间: 2003-3-23 20:46     标题: 大虾们帮帮

there are twice as many K pencils as L pencils in the box说的到底是谁是谁的两倍?
作者: joywzy    时间: 2003-3-23 21:29

K/L=2




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