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           is no doubt              his bad performance has influenced his development.

A. It; that
B. There; that
C. It; whether
D. There; whether
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科目：高中英語 來源：安徽省同步題 題型：單選題

           is no doubt           his bad performance has influenced his development.
[     ]
A.It;that
B.There;that
C.It;whether
D.There;whether

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