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Compared to Earth over most of its 4 to 6-billion-year history, the world we live in today is quite (i)_____. Of course, it is human nature to regard the world that we are used to as (ii)_____. The oceans, prairies, and mountain chains—even the air we breathe—seem the norm and therefore (iii)_____.
- Blank(i)
- bountiful
- atypical
- stable
- Blank(ii)
- invaluable
- permanent
- corrupted
- Blank(iii)
- eternal
- precious
- endangered
atypical , permanent , eternal 显示答案
以上解析由 考满分老师提供。
