斗轮机的走行机构的轨道中心距为6米。
参考答案:对
Taxi is one of the most common means of city transport, so the increase of taxi _______ in Hangzhou has led to much public concern.
A.fee
B.charge
C.fare
D.cost
位置性眩晕的特点是()
A.多在发热后出现眩晕
B.多数伴有耳鸣及听力减退
C.常先有口周发麻
D.可见于迷路和中枢病变
E.眩晕出现时头部无特定位置