标题: 主动 比 形式对称更重要？ [打印本页] 作者: zada2010 时间: 2012-5-20 18:22 标题: 主动 比 形式对称更重要？ In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor. (A) in part that their steers should acquire certain characteristics (B) in part for the acquisition of certain characteristics in their steers (C) partly because of their steers acquiring certain characteristics (D) partly because certain characteristics should be acquired by their steers (E) partly to acquire certain characteristics in their steers 答案是E 我选了D。。。 这是一道真题。。答案是官方提供的。。但是没有解释。。各位高手走过路过 给我疏通疏通思路吧！谢啦！！！