问题
单项选择题
In an emergency,the electro-hydraulic steering units can be directly controlled by the().
A.trick wheel
B.rapson slide
C.follow-up gear
D.receiver unit
答案
参考答案:A
In an emergency,the electro-hydraulic steering units can be directly controlled by the().
A.trick wheel
B.rapson slide
C.follow-up gear
D.receiver unit
参考答案:A