问题补充:
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
答案:
A. as
B. unless
C. what
D. where
解析:where引导地点状语从句,在别的受过良好教育的实验者失败的地方,他却成功了。故选D。