The word "backing" on the first line of the fourth paragraph has the closest meaning of___

外语类 正确答案 已帮助 人

The word "backing" on the first line of the fourth paragraph has the closest meaning of______.

A.returning

B.charging

C.supporting

D.replying

请帮忙给出正确答案和分析,谢谢!

热搜:word具有的功能是