Desertification is a form of land degradation, by which ( ) land becomes desert. ( 章节:1 难度:3)
- A、fertile
- B、fertilizer
- C、fertilize
- D、fertility
正确答案:A
答案解析:有
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Desertification is a form of land degradation, by which ( ) land becomes desert. ( 章节:1 难度:3)
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