◎ 题干

The H1N1 flu spread very quickly at the beginning, __________, many people were ill.
A.thereforeB.insteadC.in advanceD.however
◎ 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“The H1N1 flu spread very quickly at the beginning, __________, many people were ill.A.thereforeB.insteadC.in advanceD.however…”主要考查了你对  【副词的比较级】【疑问副词】【连接副词】【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。