A.He studied cartooning.B.He stayed at home.C.He went abroad.D.He worked for a company

外语类 职称英语 已帮助 人

A.He studied cartooning.

B.He stayed at home.

C.He went abroad.

D.He worked for a company.

热搜:a是b的充分条件,b是a的必要条件吗