题目如下:
Without seeming unworldly, William James appeared wholly removed from
the____ of society, the conventionality of academe .
A)ethos
B)idealism
C)romance
D)paradoxes
E)commonplaces
书本上解析为: society =academe 同指''学术界''， the conventionality
of academe 乃为一个分隔结构直接重复上文的语义，因此选填与conventionality同义
(E)commonplaces
→但我好奇的是the conventionality 前面的逗号应当是补述前面整句话，而非单
一名词结构，以这个概念来看，由于前面摆着removed from 取conventoinality非，
我选(B)idealism
希冀版上强者能指导GRE 中逗号在填空解题逻辑架构为何，多谢~~