相对而言，受基因改造硬红春麦上市影响较小的是软红冬麦(soft red winter wheat)，因为软红冬麦的种植地区集中在美国西南与中南部，输出的港口与硬红春麦有所不同，且输出的国家大多为没有基因食品标示规定的开...
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Even so, in contrast to only ten years ago, the firms operating in Kansas City today are largely the same as those trading soft red winter wheat at the Chicago Board of Trade and spring wheat at the Minneapolis Grain Exchange.
ECONOMIST: Grains of truth
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