[讨论]OG22，30

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.

D. partly because certain characteristics should be acquired by their steers

E. partly to acquire certain characteristics in their steers

'and' 表并列，前面应该也出现和partly because SV至少类似的结构吧？OG11里我感觉ETS对于并列强调的是结构一致。但D的被动语态显然ETS也认为不妥。但E的不定式实在没法和and后的分并列，至少我很难理解E。即使是选better choice，按照我对OG11的理解，会选D。

30， Thomas Eakins' powful style and his choices of subject--A, B,or C-was as disturbing to his own time as it is compelling for ours.

B. were as disturbing to his own time as they are

考一致。主语为复数，as。。。as。。。前一个时态to his own time 决定为过去时，后一个as for ours (our time)，为现在时。故选B。这样理解right？

有个疑问，as。。as。。结构应该平行吧？B选项第二个as后的they are必要么？ S as disturbing。。as compelling 不就很完整了么？

感觉OG10没有11扣结构严格，不确定

22、我觉得结构平行的前提是必须要保证句意符合逻辑，句子表达功能有障碍结构平行就没有了意义，should be acquired by their steers确实逻辑不清。

30、as…as 前后应该具备可比性，如果直接用compelling 句意就变成： A、B，orC像compelling一样了。

Thanks Ryoking.

22的被动语态确实让逻辑意思很award

30，你认为as as比较的是主语，我怎么看貌似比较disturbing和compelling。。