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As the world’s population continues to grow,the ________ of food becomes more and more of a concern.                                                        (2013·浙江,4)
A.worthB.supply
C.packageD.list
B

句意为:随着世界人口持续增长,食品的供应成了人们越来越关心的事情。worth价值;supply供应;package包装;list名单。根据句意知,B项为正确答案。
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