A.車(chē)輪B.搖枕C.軌道D.側(cè)架
A.轉(zhuǎn)K1型B.轉(zhuǎn)K2型C.轉(zhuǎn)K4型D.Y25型
A.90km/hB.100km/hC.120km/hD.160km/h