This method since November 15, 2019 failure to inform!
method:
Web site domain name in the back of a document fee plus vvv three letters, you can quickly download.
such as:
https://wenku.baidu.com/view/3e6d30b2fd0a79563c1e72bd.html
The letters behind baidu vvv, and then press the Enter key on the keyboard.
https://wenku.baiduvvv.com/view/3e6d30b2fd0a79563c1e72bd.html
After selecting the format they need to export, click to download.
