先让患者仰卧,行腹部叩诊时,其中腹部呈鼓音,两侧呈浊音,转成左侧位时左侧腹部浊音区增大,而右侧腹部转为鼓音,称为移动性浊音阳性,表示下列哪一种病症( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧