She has been in           doctors describe as a vegetative(植物的) state for six years.

A．what

B．which

C．that

D．how

诊断肾结核最可靠的依据是（）

A.尿中找到抗酸杆菌

B.尿培养结核菌阳性

C.尿中有大量脓细胞

D.输精管串珠样改变

E.尿频、尿急、尿痛症状