Why does Cathy look worried?A.Because she has something wrong with her.B.Because people do

外语类 已帮助 人

Why does Cathy look worried?

A.Because she has something wrong with her.

B.Because people don"t offer any advice to her.

C.Because she lot her wallet in the theatre.

D.Because the police station can"t help her.

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗