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January 08, 2010第17课14 minutesPlay继续深造申请,职业学校,学徒期满考试:工人如何提高自己的能力主题:双轨系统,职业培训,职业学校...moreShareView all episodesBy DW.COM | Deutsche WelleJanuary 08, 2010第17课14 minutesPlay继续深造申请,职业学校,学徒期满考试:工人如何提高自己的能力主题:双轨系统,职业培训,职业学校...more