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题目内容双击单词支持查询和收藏哦～
Apparently, advanced tortoises evolved multiple times: the high-domed shells and columnar, elephantine feet of current forms are specializations for terrestrial life that evolved _____ on each continent.
- A.independently
- B.interchangeably
- C.paradoxically
- D.simultaneously
- E.symmetrically
A显示答案
以上解析由 考满分老师提供。
