慢性胃炎的主要病因是（） ["药物","食物","胆汁反流","幽门螺杆菌","物理因素"]
利福平（） ["结核菌抑菌剂","结核菌全杀菌剂","结核菌半杀菌剂","对结核菌无影响","对末梢神经有损害"]
乙状结肠扭转确诊的检查方法是（） ["X线平片","CT","血管造影","口服钡餐造影","钡灌肠检查"]
下列肠结核的X线征象中，哪一项是错误的（） ["盲肠缩窄、收缩及变形","回肠末端受侵，黏膜破坏","回肠病变近侧端可见钡剂滞留，肠管扩张","肠道运行正常","回盲部可见跳跃征"]
判断胃酸缺乏的指标是（） ["有嗳气，无反酸","呕吐物无酸","进餐后明显腹胀","基础胃酸分泌（BA0）为零","最大胃酸分泌（MAO）为零"]
普通混凝土用砂标准中强制性条文有那些？
