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Qian Xuesen is a great Chinese scientist ______ great contributions (貢獻) to building our motherland.

A. which has made
B. which have made
C. who has made
D. who have made
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科目：初中英語 來源：重慶市期中題 題型：單選題

Qian Xuesen is a great Chinese scientist ______ great contributions (貢獻) to building our motherland.
[     ]
A. which has made
B. which have made
C. who has made
D. who have made

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