[求助]请问Required student fees 是什么？

上网看了最新的b school 排名，其中有一项是Required student fees，请问是什么费用？为什么有些学校只需要几十，但是maryland却要一万多呢？

谢谢！

从usnews上得到的：

Fall 2007 Admissions Information
Application deadline: 03/15
Application fee: $60

Fall 2005 Admissions Statistics
Average GMAT: 641 (full-time), 601 (part-time)
Acceptance rate: 41.7%

2005-2006 Expenses
In-State Tuition: $14,454 (full-time), $803 per credit hour (part-time)
Out-of-State Tuition: $23,814 (full-time), $803 per credit hour (part-time)
Required student fees: $11,541

Starting Salary
Average starting salary: $78,869
        

谢谢各位的帮助！