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题目内容双击单词支持查询和收藏哦～
Because it has usually been impossible to eradicate exotic species once they have become established, it is ____________ to minimize introductions of species that have substantial probabilities of unwanted impacts.
- A.prudent
- B.customary
- C.provident
- D.superfluous
- E.essential
- F.pointless
A,C显示答案
以上解析由 考满分老师提供。
