大学英语(1)第一次网络作业
三次网络作业的平均成绩占期末考试成绩30,请大家按提示认真复习好《大学英语》第一册相关课文和课后语法知识点后完成如下作业;作业一经批改评分,将不能修改;此次作业完成后应交到“在线作业”一栏本次作业界面中;作业必须按最后一页答卷表格格式作答,不要以附件形式缴交
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umberofretiredpeople1Theworld’spopulatio
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