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In recent years cattle breeders have increasingly used [#permalink]
13 Jul 2006, 06:04
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In recent years cattle breeders have increasingly used crossbreeding, in part that their steers sould acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor.
(A) in part that their steers sould 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