4.As the world’s population continues to grow, the ______ of food becomes more and more of a concern. 　　　
(A)worth
(B)supply
(C)package
(D)list

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統計： A(0), B(1), C(0), D(0), E(0) #987634

詳解 (共 1 筆)

#1202020

看前面句子的关键词汇continues to grow，那么人就要eat就有demand就有supply的问题了。

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