A.1/4 B.1/3 C.1/2 D.1/5
A.制動力矩逐漸減小 B.制動器突然失靈 C.制動輪溫度過高、制動帶冒煙 D.制動器打不開
A.大于500mm B.大于710mm C.大于1000mm D.大于800mm