胃插管术禁忌证
参考答案：
严重的食管静脉曲张、腐蚀性胃炎、鼻腔阻塞、食管或贲门狭窄或梗阻，严重呼吸困难。
It's 7 o'clock. My family ______ dinner at home. [ ]
A. is having
B. are having
C. has
D. have
小蓟饮子的功用是
A．凉血止血B．温阳健脾，养血止血C．清肝宁肺，凉血止血D．凉血止血，利水通淋E．清肠凉血，疏风行气
