求助OG verbal review 第22题

yunshishow

22 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
答案选E。但D答案并没有什么致命性的错误，而且D与后面的partly because crossbreeding is said to provide hybrid vigor更加平行。求牛牛解答。

zealdin

题的意思是: 这些年来cattle breeders have increasingly used crossbreeding,一方面是这样可以获得certain characteristics in their steers,另一方面是因为crossbreeding据说可以provide hybrid vigor.

D说should be acquired by their steers,感觉不是很准确

关于because平行的事..我也不是太明白,只是觉得比较D,E而言,E读着要通一点