◎ 题干
______ difficult it is, he is determined to ______ the experiment.
A.No matter how; have a go atB.However; have a go for
C.Whatever ; have a goD.No matter what; have a go at
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ ______ difficult it is, he is determined to ______ the experiment.A.No matter how; have a go atB.However; have a go forC.Whatever ; have a goD.No matter wha…”主要考查了你对  【therebe句型】  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。