平衡功能评定的适应证错误的是（）

A.意识障碍

B.帕金森病

C.脑外伤

D.骨关节疾患

E.老年人

The truth, Sir, is that the old man____ across the street when my car hit him.

A．was to walk

B．had been walking

C．walked

D．was walking