问题描述：
-------Could you buy me an MP3 like this,Uncle? --------Sure.I will buy you______one than th
this,but __________this.A.a cheaper, as nice as B.a better, better than
C.a worse, as nice as D.a dearer, worse than
this,but __________this.A.a cheaper, as nice as B.a better, better than
C.a worse, as nice as D.a dearer, worse than
问题解答：
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