1, and then click to enter the vocational education cloud page, as shown in the figure: finally, after entering the professional course page, click to watch the video teaching course to brush the lesson in the cloud classroom wisdom.

2. no. The video of intelligent vocational education in cloud classroom can not be displayed and watched by dragging the progress bar of background data, but only after watching it carefully.

3. yes. Smart vocational education is an online teaching platform for teachers and students. The video is not long enough, so you can brush it again. As long as you refresh the network and brush enough time, you can finish your study.

4. It will be discovered. But it is not obvious. For example, a video is 10 minutes. If you watch it at twice the speed, the background will show that you have studied for 5 minutes. It won't have any influence, and it won't affect your grades. I suggest you hang up and arrange your time reasonably. Large open online courses, that is, massiveopenonlinecourses.