According to William Cline of the Peterson Institute for International Economics in Washington, DC, at least 4% of the world's grain is used to make ethanol for fuel.
根据皮特森国际经济研究所(位于华盛顿哥伦比亚特区)的威廉姆·克莱恩的研究,世界粮食至少4%被用于制造酒精燃料。
Listing 4: Updated dc: subject to use controlled vocabulary.
清单4:更新dc: subject以使用受控词汇表。
Listing 5: Updated dc: subject to use controlled vocabulary in Listing 4, repeating label property.
清单5:通过重复使用lable特性,更新dc: subject以使用清单4中的受控词汇表。
应用推荐