最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
In the Southwestern United States, periodic droughts constrict fish into refuge areas when waters dry up, but historically there was greater connectivity of stream systems, which __________ recolonization of desiccated reaches when precipitation returned.
- A.precluded
- B.facilitated
- C.revealed
- D.forestalled
- E.expedited
- F.required
B,E显示答案
以上解析由 考满分老师提供。
