某河流中游修建山谷型水厍和调峰电站，生态环境影响评价为2级。根据《环境影响评价技术导则非污染生态影响》，其评价范围包括有()
A-库区B.取土场和弃土场
C.上游集水区域D.下游氷文变化区域

相关专题： 集水区  

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