哪一个不是混合痔的手术方法
A．切开挂线术B．切除缝合术C．外切内扎术D．外切内注术E．外剥内扎术
参考答案：A
超声诊断肝硬化失代偿期的主要依据是
A．有慢性肝病史B．肝脏体积缩小并腹水C．肝实质回声强D．脾脏不同程度增大E．可有内收的侧方声影
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