发现高压触电事故后,应使用(),使触电者解脱电源。
A.木棒
B.树枝
C.专用工具
D.普通工具
参考答案:C
I didn't see your sister at the party. If she __, she would have met my brother.
A.has come
B.had come
C.did come
D.came
男性,42岁,右腹股沟区可回复性肿块1年半,不可回纳7小时,伴腹痛,行急诊手术。在判断嵌顿肠管是否发展成绞疝时,下列哪项是错误的()
A.肠壁失去弹性
B.肠壁失去光泽
C.肠壁失去完整性
D.肠壁失去蠕动
E.肠系膜动脉搏动消失