应该是A. 请看OG 204. 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 (E) 该题并不非常平行. C的问题,本是两个原因促使output tripled, C 产生歧义: With charcoal’s being replaced by coal as (the fuel used in the smelting of iron ore and several improvements in blowing machinery), the average output of ironwork tripled over the eighteenth century. the fuel used... and improvements 均用来修饰 charcoal being replaced. open to discuss |