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og verbal分册第24题 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.
C.partly because of their steers acquring certain characteristics D.partly because certain characteristics should be acquired by their steers E.partly to acquire certain characteristics in their steers
答案为何是E啊!!! 求教求指导!!!! |
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