题目内容:
Thedecreaseinworldfoodpriceswasaresultof__________.
A.asharpfallinthepurchasingpoweroftheconsumers B.asharpfallinthecostoffoodproduction
C.theoverproductionoffoodinthefood-importingcountries
D.theoverproductiononthepartofthemainfoodexportingcountries
参考答案:
答案解析: