题海让大学四年没有难题
白天模式登陆

题目详情

单选题 Over the past decades, sea ice ______ in the Arctic as a result of global warming. ( )

A. had decreased

B. decreased

C. has been decreasing

D. is decreasing

Easy go-贴近生活学英语课程封面

学科:Easy go-贴近生活学英语

时间:2023-05-08 08:33:26

Copyright © 2022 津ICP备2021001502号