题目内容：

Though there are few Chinese___have heard of the Great Wall,many of them haven't been there yet.
A:as B:who C:that D:but

优质解答

应该是 DFEW / NO / LITTLE - -- -+ BUT- - -- 双重否定结构的定语从句=== Though there are MANY Chinese WHO have heard of the Great Wall,又如：in our library,there are NO books BUT he has read.===in our l...