You are a busy student, squeezed between the heavy workload and rich social activities. In a situation where your time and energy are severely dispersed, undergraduate online courses http://www.wangkedaixiu.com/wkds/bk/ have emerged as a substitute service, providing convenient solutions for you to break free from tight schedules. However, have you truly understood the common routines and strategies used in undergraduate online courses? Is there sufficient vigilance to identify those poor operations?