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In recent years cattle breeders have increasingly used [#permalink]
17 Jan 2005, 14:27
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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.
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 characteristcs in their steers