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题目内容双击单词支持查询和收藏哦～
At Cerro Portezuelo, the task of separating grinding tools from the larger collection of excavated stone objects was (i)_____ the ancient practice of recycling grinding tool fragments for building materials, hammer stones, and other purposes that (ii)_____ their original use.
- Blank(i)
- complicated by
- important to
- independent from
- Blank(ii)
- complemented
- obscured
- underscored
complicated by , obscured 显示答案
以上解析由 考满分老师提供。
