A.Leaving it alone.B.Sitting down.C.Trying to find an answerD.Asking the teacher.

外语类 公共英语 已帮助 人

A.Leaving it alone.

B.Sitting down.

C.Trying to find an answer

D.Asking the teacher.

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