◎ 题干
Although they plant trees in this area every year, the tops of hills are still ______.
A.blankB.hollowC.vacantD.bare
◎ 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“Although they plant trees in this area every year, the tops of hills are still ______.A.blankB.hollowC.vacantD.bare…”主要考查了你对  【形容词的比较级】【形容词的最高级】【形容词的排序】【形容词】  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。