肠套叠应当进行手术治疗的情况有()
A.空气或钡剂灌肠复位不成功
B.病期超过3天
C.出现腹膜刺激征
D.肠坏死
E.肠穿孔
参考答案:A, C, D, E
John, you play with the knife, or you hurt yourself.[ ]
A. won't; can't
B. mustn't; may
C. shouldn't; must
D. can't; shouldn't
瘾疹的发生与以下因素有关,除了:()。
A.物理因素
B.他人传染
C.精神因素
D.感染因素
E.遗传因素