LKJ柴油机转速和列车管压力允许误差分别是多少？
参考答案：±30r/min和±20KPa
—My jeans are brown. ________
—Brown, too. [ ]
A. What colour is yours?
B. And you?
C. What about you?
D. What about yours?
进行应急操舵，如要把手轮当做手柄使用，则必须将手轮轴销拨出，旋转（）后置于凹槽内固定。
A.45º
B.60º
C.90º
D.180º
