◎ 题干
—hat do you think of genetically modified food (转基因食品)?
—We all think ______ is careless ______ some scientists to say it is safe before doing any experiment.
A.that, for B.it, for C.it, of D.that, of
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—hat do you think of genetically modified food (转基因食品)? —We all think ______ is careless ______ some scientists to say it is safe before doing any experime…”主要考查了你对  【指示代词】  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。