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题目内容双击单词支持查询和收藏哦～
Though it may seem as if more than a century of _____ has made the electrical grid an all-encompassing web connecting the whole of the continent, many vast and beautiful areas remain without power.
- A.refinement
- B.expansion
- C.ubiquity
- D.augmentation
- E.omnipresence
- F.isolation
B,D显示答案
以上解析由 考满分老师提供。
