多项选择题
A.甲乙订立买卖合同的行为是物权行为B.出卖人甲负有向买受人乙转让房屋所有权的义务C.乙向甲负有支付相应价金的义务D.甲向乙为了履行买卖合同而转让房屋所有权的行为是物权行为
A．after he worked in the same company for less than 25 yearsB．after he worked in different companies for 25 yearsC．after he worked faithfully in the same company for over 25 yearsD．after he worked heart and soul in his own company for 25 years