[单选题]列车拉铁鞋开车为（）事故。
A.一般A类
B.一般C类
C.一般B类
D.一般D类

{{B}}Columbia University{{/B}}
Columbia University is one of the toughest universities to get into in the U.S. Coursework at Columbia University is challenging, most notably in a number of required courses within the core curriculum. The core accounts for 90 percent of the work here. Without it, Columbia would be a breeze. The University is teeming with tremendous intellectual activity in just about any field imaginable, and accomplished scholars with mind-boggling brainpower can be found in nearly every department if they are available~ Columbia is a haven for the self-motivated. No one is going to hold your hand. Though students say their school is run pretty efficiently, many students see considerable room for improvement. The administration sometimes restricts you instead of helping you, as one student put it. The library and research resources are poorly lit but truly dazzling. Almost