◎ 题干
I don’t know ______ Apple iphone4s.   
A.that she is so crazy about
B.what is she so crazy about
C.why she is so crazy about
D.how she is so crazy about
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I don’t know ______ Apple iphone4s.A.that she is so crazy aboutB.what is she so crazy aboutC.why she is so crazy aboutD.how she is so crazy about…”主要考查了你对  【宾语从句】  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。