◎ 题干
We already have ______pencils, but we need two ____ pens.
A.dozen of ; dozenB.dozens of ; dozens
C.dozens of ; dozenD.dozen; dozen
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“We already have ______pencils, but we need two ____ pens.A.dozen of ; dozenB.dozens of ; dozensC.dozens of ; dozenD.dozen; dozen…”主要考查了你对  【序数词】【小数】【分数】【量词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。