问题
选择题
| 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 |
答案
答案：C
搜题请搜索小程序“爱下问搜题”
| 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 |
答案：C
