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芒鞋竹杖

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paul1603

定位到原文的这段话
At the time, minorities constituted seventeen percent of the nation's population, but only four percent of the nation's self-employed.  This ownership gap was held to be the result of past discrimination.  
说少数族裔占全国人口的17% 但是在全国的self-employed中只占有4%的少数族裔 这之间的差异就是ownership gap
选项D说的是 少数族裔的self-employed人数占到全国的self-employed人数10%以上 10%和17%之间的gap比4%和17%之间的gap缩小了