一个地区的绿化覆盖面积至少应占用地的()以上,才能起到改善气候的作用A.20%B.25%C.30%D.40%

作者: rantiku 人气: - 评论: 0
问题 一个地区的绿化覆盖面积至少应占用地的()以上,才能起到改善气候的作用
选项 A.20% B.25% C.30% D.40%
答案 C
解析
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  • 位置: 第 85 行
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