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Today we do not generally view wildfires as (i)____________; but indigenous Californians recognized centuries ago that fires can (ii)____________ of many resources, such as acorns and mesquite beans, by eliminating underbrush.
- Blank(i)
- sporadic
- propitious
- formidable
- Blank(ii)
- highlight the importance
- threaten the destruction
- facilitate the collection
propitious , facilitate the collection 显示答案
以上解析由 考满分老师提供。
