A.0.5~1S B.2~5S C.10S D.15S
A.貨叉起升 B.貨叉下降 C.貨叉前傾 D.貨叉后傾
A.購置、轉(zhuǎn)移 B.購置、變更 C.購置、變更、轉(zhuǎn)移 D.變更、轉(zhuǎn)移