摘要：32． environmental damage is done, it takes many years for the ecosystem to recover. A. Even if B. If only C. While D. Once
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______ environmental damage is done, it takes many years for the ecosystem to recover.
A. Even if B. If only C. While D. Once
查看习题详情和答案>>_______environmental damage is done, it takes many years for the ecosystem to recover.
- A.Even if
- B.If only
- C.While
- D.Once
_______ environmental damage is done, it takes many years for the ecosystem to recover.
A. Even if B. If only C. While D. Once
查看习题详情和答案>>