The acute Perforation has developed.发生急性穿孔.Involvement of the small bowel by primary or metastic neoplasms may occasionally be followed by perforation.原发性或转移性肿瘤累及小肠也偶可继发穿孔.The complications of duodenal ulcer that require...
字段名称只能包含字母 、 数字或下划线字符.Field names can contain only letters, numbers, or the underscore character.链接的颜色应该与网页中其它文本的颜色有个清晰的对比, 最好是使用下划线.Use a clearly contrasting colour for links, and preferably underline them.至少在一行中有并发冲突. ...