If you just want to browse all the course content and does not want the system to record your learning progress, does not need to obtain a certificate after completion of the course and does not need to download handouts of the course, please login as a guest.
If you login with email, we will invite you to participate in a research (you can choose to agree or not agree to participate). You can browse all the content of the course. The system will record your progress of learning through the courseware. After completion of the course, you will get a certificate and can download the handouts of the course. If you want to login with email, please register and then login.