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题目内容双击单词支持查询和收藏哦～
Animal ___________ may have originated from slow changes in Earth's orbit thousands of years ago: as the orbit changed, less rain fell and food sources became scarce, forcing humans to herd animals for sustenance.
- A.hunting
- B.mimicry
- C.migration
- D.husbandry
- E.tracking
- F.domestication
D,F显示答案
以上解析由 考满分老师提供。
