下列哪一种不属于消化性溃疡的并发症() A.出血 B.穿孔 C.幽门梗阻 D.癌变 发布时间:2017-05-07 09:31 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列哪一种不属于消化性溃疡的并发症()A.出血B.穿孔C.幽门梗阻D.癌变E.难治性溃疡
题型:单项选择题 To keep healthy,Professor Johnson ________ cycling as a regular form of exercise after he retired.[ ]A. took up B. caught on C. carried out D. made for 查看答案