患者男性,52岁,3年前行阑尾切除术,1d前出现腹痛,不排气排便。
该患者最可能的诊断为
A.腹膜炎
B.肠梗阻
C.结肠炎
D.肝脓肿
E.肠结核
参考答案:B
--- What does the model plane look like?
---Well, the length of its wings is _______ of its body.
A.more than twice the length
B.twice more than
C.more than twice that
D.twice the length
优质碳素钢的()较低。
A.碳含量
B.合金元素含量
C.硫和磷含量