Only when the score reaches 60 points can you qualify for the final exam. According to official website of Lanzhou Jiaotong University, the double-60 system in Lanzhou Jiaotong University means that you are eligible to take the final exam only if your score reaches 60. If your score does not reach 60, you will be disqualified from the final exam. If you don't reach 60 points at the end of the term, you won't get grades. This course is regarded as a learning assessment system. Lanzhou Jiaotong University is a key university jointly established by Ministry of Transport, State Railway Administration, China Railway Corporation and Gansu Provincial People's Government.