A.Become a member of the Committee for the Exchange of Foreign Students.B.Find the org

外语类 公共英语 已帮助 人

A.Become a member of the Committee for the Exchange of Foreign Students.

B.Find the organization sponsoring him.

C.Learn how to get accustomed to the life in the United States.

D.Stay in a foreign country for six months.

热搜:a是b的充分条件,b是a的必要条件吗