◎ 题干
If you sit in an office all day long and rarely _____, you’re likely to suffer from neck and
back pains.
A.cut inB.work outC.break downD.stay up
◎ 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“If you sit in an office all day long and rarely _____, you’re likely to suffer from neck andback pains.A.cut inB.work outC.break downD.stay up…”主要考查了你对  【序数词】  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。