Any population increase beyond a certain level necessitates greater ______ vegetable foods; thus, the ability of a society to choose meat over cereals always arises, in part, from ______ the number of people. (A) reliance on .. replenishing (B) production of .. estimating (C) spending on .. concealing (D) recourse to .. limiting (E) attention to .. varying 答案是D 这题的後半段意思跟前半段感觉好不搭喔 不知道该怎麽解释 @@ --

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