判斷題
多項選擇題
A.尖軌 B.心軌 C.基本軌 D.無岔軌
單項選擇題
A.4B.6C.7D.8
A.5mm B.10mm C.15mm D.20mm
A.10mm B.15mm C.20mm D.25mm
A.1±0.5mm B.2±0.5mm C.3±0.5mm D.4±0.5mm