大家应该记得OG12里一道题说过that...that双重从句不好
但是看PREP07-26
The investigations of many psychologists and anthropologists support the generalization of there being little that is a significant difference in the underlying mental processes manifested by people from different cultures.
(A) of there being little that is a significant difference
(A) of there being little that is a significant difference
(B) of there being little that is significantly different
(C) of little that is significantly different
(D) that there is little that is significantly different
(E) that there is little of significant differences
答案却又是D
这里怎么理解呢？that...that是不是一种不推荐但是不绝对错那种？像n+that+be+done | 
