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题目内容双击单词支持查询和收藏哦～
Humanity's struggle with bedbugs is ______: archaeologists have recovered remains of the parasites dating back 3,500 years to the time of the Egyptian pharaohs.
- A.disconcerting
- B.unexceptional
- C.perennial
- D.preordained
- E.inevitable
- F.long-standing
C,F显示答案
以上解析由 考满分老师提供。
