瘢痕性幽门梗阻的典型症状是() A.恶心、嗳气、食欲减退 B.经常呕吐 C.上腹部疼 发布时间:2017-09-07 22:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 瘢痕性幽门梗阻的典型症状是()A.恶心、嗳气、食欲减退B.经常呕吐C.上腹部疼痛D.代谢性酸中毒体征E.上腹部闷胀感
题型:单项选择题 I have many friends, _____ some are businessmen.A. of them B. from which C. who of D. of whom 查看答案