English is a language shared by several diverse cultures, ________ uses it differently.
A：all of which
B：each of which
C：all of them
D：each of them
名著阅读
若集合P＝{1,2,3,4}，Q＝{x|0＜x＜5，x ∈R}，则( )
地球的形状是一个____ 稍扁，____ 略鼓的不规则球体。
“今背本而趋末，食者甚众，是天下之大残也。”这表明作者主张
