对诊断肝硬化最具参考价值的是（）。

A．肝大、脾大

B．肝掌与蜘蛛痣

C．蛋白电泳了球蛋白明显增高

D．肝大且质地坚硬

E．胃镜示食管胃底静脉曲张

The symptoms of a fractured back are（）.

A.leg cramps in the muscles in one or both legs

B.pain and uncontrolled jerking of the legs and arms

C.vomiting and involuntary urination or bowel movement

D.pain at the site of the fracture and possible numbness or paralysis below the injury