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    While I was chatting with one of my friends on the Internet, occurred to me I needed to download some information about my research. A. what; that B. what; which C. it; which D.it; that 【查看更多】

     

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    While I was chatting with one of my friends on the Internet, ______ occurred to me ______ I needed to download some information about my research.

       A. what; that                       B. what; which  

       C. it; which                         D.it; that

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