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题目内容双击单词支持查询和收藏哦~
Demographic relationships that have been ______ may not be useful targets for prolonged study: that very characteristic suggests that they may continue to change rapidly.
- A.static
- B.enervated
- C.intransigent
- D.moribund
- E.mutable
E显示答案
以上解析由 考满分老师提供。