标签：Breeds 相关文章

VOA标准英语2013--肯尼亚农民种植新作物应对气候变化

Kenyan Farmers Turn to New Breeds to Withstand Climate Change 肯尼亚农民种植新作物应对气候变化 NAIROBI Kenyan farmers over the years have often seen their crops wiped out by either floods or drought, causing poverty and soil degradati

发表于:2019-01-31 / 阅读(81) / 评论(0) 分类 VOA常速英语2013年(十月)

2007年VOA标准英语-Scientists Find DNA That Determines Dog Size

By David McAlary Washington 05 April 2007 Scientists have discovered a genetic reason why some dogs are small and others big. They say the finding has implications beyond canine size, since the work applies to the study of other complex genetic trait

发表于:2019-02-05 / 阅读(119) / 评论(0) 分类 2007年VOA标准英语（四月）

英语听力文摘 English Digest 278、形态各异的狗

Mans Best Friendin All Shapes and Sizes Scientists are making great strides in understanding the genes that allow such a wide range of shapes, sizes and personalities in different dog breeds. Did you know domestic dogs were bred from wolves about 15,

发表于:2019-03-09 / 阅读(113) / 评论(0) 分类 英语听力文摘 English Digest
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