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Any population increase beyond a certain level necessitates greater（i）_____ vegetable foods; thus, the ability of a society to choose meat over cereals always arises, in part, from（ii）_____ the number of people.
- A.reliance on.. replenishing
- B.production of.. estimating
- C.spending on.. concealing
- D.recourse to.. limiting
- E.attention to.. varying
D显示答案
以上解析由 考满分老师提供。
