The shirt is nice, _______ it's not big enough. [ ]
A. so
B. or
C. and
D. but
D
列车行李员在途中发现违禁物品的应急处理？
160km/h及以下区段的线岔定位拉出值不大于（）mm。
A.350
B.400
C.450
D.500
