电气图形符号一般分为两大类:一类是( )图中的符号,一类是电气平面图上的符号。
A.电气图形
B.电气线路
C.电气安装
D.电气原理
参考答案:B
— Anything I can do for you, John?
— Yes, my girlfriend is running her back to me again.
— You _________ your temper. [ ]
A. have always lost
B. are always losing
C. always lost
D. were always lost
患者男性,32岁,既往健康。右上腹不适,乏力,恶心,食欲下降2周,巩膜黄染1周,申请腹部超声检查。
超声可见肝形态饱满,右肝斜径147mm,肝实质回声均匀减低,肝内门静脉分支管壁回声增强,肝内胆管不扩张,胆总管内径6mm,胆囊大小为42mm×14mm,胆囊壁弥漫性增厚,呈双层结构,胆囊腔内未见异常回声,根据临床症状及超声检查,黄疸可能为()。
A.溶血性黄疸
B.肝细胞性黄疸
C.高位梗阻性黄疸
D.低位梗阻性黄疸
E.胆汁淤积性黄疸
F.先天性非溶血性黄疸