She says that the goods and services provided by nature ― like clean air, rain or ( ) soils ― should not be taken for granted. ( 章节：4 难度：1)
- A、fertile
- B、salty
- C、wet
- D、top
正确答案:A
答案解析:有
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She says that the goods and services provided by nature ― like clean air, rain or ( ) soils ― should not be taken for granted. ( 章节：4 难度：1)
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