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Part 1 Rehearsing 朗读下列内容: A: 3,020,900 256 公交车 609 房 和平街 48 A 栋 22 楼 B: Be quiet. Is there any effective keyword search engine? Yes, there is. Then what sort of research shall we carry out? C: Its purchases of product from J&K rose sharply from 2014 to 45%, the highest in the past 4 years.