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题目内容
Although one can adduce myriad of examples of ecosystem disruption by nonindigenous species, nevertheless most introduced species that survive in fact appear to have quite _____ effects on the ecosystem they have invaded.
- Aminimal
- Btrifling
- Cmarked
- Dconspicuous
- Eintriguing
- Fdeleterious
A,B显示答案
以上解析由 考满分老师提供。