动脉导管未闭()法乐氏四联症() ["A．肺动脉增宽","B．肺动脉内湍流频谱","C．两者均有","D．两者均无"]
二尖瓣关闭不全()二尖瓣狭窄() ["A．收缩期关闭有裂孔","B．收缩期瓣口左房侧有血流频谱","C．两者均有","D．两者均无"]
弥漫性肝癌()肝血管瘤() ["A．小于或等于1cm低回声结节","B．门静脉内栓子","C．两者均有","D．两者均无"]
肝切面图内见边界清楚之结节且无包膜、周边回声强、内部回声略低于周边并呈筛孔状回声()肝切面图内见强回声或低回声结节、边缘不规则、周边有晕环、内部光点分布不均匀()肝切面内呈龟背样回声()肝切面内见包膜完整、壁薄光滑的圆形液暗区()肝切面内见包膜粗糙、壁厚不光滑、内部呈低回声或液暗区之病变回声区，伴局部压痛明显() ["A．肝血管瘤","B．肝癌","C．肝囊肿","D．肝脓疡","E．血吸虫病性肝纤维化"]
慢性胰腺炎()胰头癌()胆总管下段梗阻()肝总管梗阻() ["A．胰管串珠状扩大","B．胰管均匀性增大","C．胰管不扩大而胆总管、胆囊及肝内胆管扩大","D．胆总管及胆囊显示不清，而左、右肝内胆管扩大","E．胆囊肿大"]
胆囊结石()胆囊息肉()
