肝癌患者发生黄疸的原因中应除外()
A.肝癌细胞侵入胆管内形成癌栓
B.肝癌压迫了肝胆管
C.肝癌晚期
D.肝功能衰竭
E.肝肿瘤的破坏
参考答案:E
解析:肝肿瘤破坏不是黄疸的原因。
牙根情况与固定义齿功能直接有关的是()
A.支持力
B.连接强度
C.固位力
D.美观性
E.舒适度
Tom is talking about the accident as though he _______ it. [ ]
A. saw
B. had seen
C. has seen
D. would see