According to the passage social distance refers__

外语类 已帮助 人

According to the passage,social distance refers______.

A. differs among animal species

B. to psychological distance

C. begin to attack

D. to physiological distance

E. distance between an animal and its enemy before fleeing

F. distance between certain animal species before fleeing

热搜:关于氨基酸代谢错误的论述是_________。