The county(city) was used as study unit, the average incomes and expenditure of rural residents as well as their relationship were analyzed by two groups with 12 indexes.
以县（市）为研究单元，选用两组12个指标（变量）分析了广西农村居民人均收入与消费支出水平及其相关性。
Today we'll study Unit 5 Cherish Life.
今天我们探究第五单元，珍爱生命。
Unit One is finished. We'll go on to study Unit Two next week.
第一单元已经学完了，下周我们要接着学第二单元。
Students must study Unit 5, Student Book and Workbook, pg 54 – 63.
同学们需要复习第五单元教材及练习册的54-63页。
Students must study Unit 5, Student Book and Workbook, pg 54 – 63.
同学们需要复习第五单元教材及练习册的54-63页。
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