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22 In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characterstics and partly because crossbreeding is said to provide hybrid vigor. A in part that their steers should acquire certain characterstics B in part for the aquisition of certain characteristics in their steers C partly because of their steers aquiring certain characteristics D partly because certain characteristics should be acquired by their steers E partly to acquire certain characteristics in their steers 答案是E，为什么不是D呢， 前后两个BECAUSE引导的从句正好平行啊。如果选E的话，AND前后的两个成分怎么平行呢。 望NN指点。 39 a study commitioned by the Department of Agriculture showed that if calves exercise and associated with other calves, they will require less medication and gain weight quicker than do those raised in confinement. A associated with other calves, they will require less medication and gain weight quicker than do B associtated with other calves, they require less medication and gain weight quicker than C associate with other calves, they required less medication and wil gain weight quicker than do D associate with other calves, they have required less medication and will gain weight quicker than do E associate with other calves, they require less medication and gain weight more quickly than 答案是Ｅ，疑问是if引导的从句是现在时，主句不是应该用将来时态吗，那Ｅ的表达有错吗？ | 
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发表于 2007-5-30 21:54:00
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