Thank you, the content of the presentation is very complent, but the video is not visible in some cases, I hope that can update with a better quality!!!
You can download the free downloading software called "Real Player". We can download every videos on TH-cam, and it's free. I recommend it. Hope you succeed.
Thank you, the content of the presentation is very complent, but the video is not visible in some cases, I hope that can update with a better quality!!!
You can download the free downloading software called "Real Player". We can download every videos on TH-cam, and it's free. I recommend it. Hope you succeed.