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题目内容双击单词支持查询和收藏哦～
In agricultural ecosystems such as sunflower and cranberry plantations,most insect herbivores do not attain outbreak densities, suggesting that they are ______________ natural enemies.
- A.pentiful despite
- B.disguised as
- C.shielded from
- D.regulated by
- E.dependent on
D显示答案
以上解析由 考满分老师提供。
