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Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.

　　A. which　　　　B. that　　　　　 C. what　　　　　D. where

Although he knew little about the large amount of work done in the field , he succeeded      other more well-informed experimenters failed.

       A．as     B．unless       C．what        D．where

Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.

　　A. which　　　　B. that　　　　　 C. what　　　　　D. where

Although he knew little about the large amount of work done in the field, he succeeded ________ other more well - informed experimenters failed.

　　A. which　　　　B. that　　　　　 C. what　　　　　D. where

 Although he knew little about the large amount of work done in the field , he succeeded ____other more well-informed experimenters failed.

         A. as        B. unless        C. what   D. where