◎ 题干
Before the final examination,many students have shown
      of tension.Some have trouble in sleeping while others have lost their appetite(胃口).
A.anxietyB.marks C.signsD.remarks
◎ 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“Before the final examination,many students have shownof tension.Some have trouble in sleeping while others have lost their appetite(胃口).A.anxietyB.marks C.s…”主要考查了你对  【可数名词及其单复数】【集合名词】【名词】  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。