诸位大虾,我在看一家美国商学院的mba(full time)的介绍时。没看见说明要上几年,但是有如下一段文字(The basic program consists of 36 graduate semester hours of core, directed elective, and elective study which builds upon a foundation of accepted management principles.) 请教: 意思是核心和选修课程一共需要36学时吗?学时的含义又是多长 多谢