A.To find a better science journal in the library.B.Not to miss any chance to collect

外语类 公共英语 已帮助 人

A.To find a better science journal in the library.

B.Not to miss any chance to collect useful information.

C.To buy the latest issue of the magazine.

D.Not to subscribe to the journal.

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