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24. 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.
D. partly because certain characteristics should be acquired by their steers
E. partly to acquire certain characteristics in their steers
正确答案是 E 蓝皮的解释:D should be acquired 奇怪而且不合逻辑的 我的想法是划线部分应该与 and partly because 并列和对称的, E是不对等的
不明白D为什么错误, E正确的原因 |
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