問題詳情

27. The professor has written another book,________ of great importance to computer science.  
(A) which I think it is     
(B) and I think is  
(C) which I think is      
(D) when I think is

參考答案

答案:C
難度:適中0.495
統計:A(80),B(18),C(99),D(3),E(0)

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