◎ 题干
It was       problem that       of the students could work it out.
A.so hard a ; a fewB.such a hard ; few
C.such hard a ; fewD.so a hard ; a few
◎ 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“It wasproblem thatof the students could work it out.A.so hard a ; a fewB.such a hard ; few C.such hard a ; fewD.so a hard ; a few…”主要考查了你对  【副词的比较级,副词的最高级】【关系副词】【疑问副词】【频度副词】  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。