贲门失弛缓症() A.钡餐造影食管下段充盈缺损 B.钡餐造影食管下段呈鸟嘴样改变 C 发布时间:2018-02-06 09:07 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 贲门失弛缓症()A.钡餐造影食管下段充盈缺损B.钡餐造影食管下段呈鸟嘴样改变C.钡餐造影食管黏膜呈串珠样改变D.钡餐造影食管大部呈线性狭窄E.钡餐造影食管下段华圆形压迹
题型:单项选择题 B型题 The students _____ not to talk loudly in the reading-room. [ ]A. have told B. are told C. will tell D. are telling 查看答案