The credit system lasts two and a half years. I will finish my studies in Xuanwu and go to Haidian for classes every week. Very painful. I suggest you choose a school away from home.
If you choose a 4-credit college English course, that is, if you pass the exam, you will get 4 credits, so the tuition you have to pay is 4*65 yuan. If you fail, you can choose again next semester, but you can pay again. If you want to get a diploma, you have to complete the credits he must achieve.
But China Renmin University is good, majoring in accounting. You can search.