◎ 题干

_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately. 
A.Even ifB. As far asC.If only D. So long as
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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 calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.A.Even ifB. As far asC.If only …”主要考查了你对  【并列连词】【从属连词】  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。