◎ 题干
Chemical pollution will bring about a threat to agriculture and food chain, and
to human health.
A.frequentlyB.significantly
C.steadilyD.consequently
◎ 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“Chemical pollution will bring about a threat to agriculture and food chain, andto human health.A.frequentlyB.significantlyC.steadilyD.consequently…”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。