客车圆柱轴承活动平挡圈易磨耗，但不会影响轴承轴向游隙，不会引起转向架的横向稳定性降低。（）
参考答案：错
I’d like to arrive 20 minutes early I can have time for a cup of tea. [ ]
A.as soon as
B.as a result
C.in case
D.so that
碳酸盐岩油气层的酸化有哪些？
