No charge. According to Sohu News, Chinese periodicals of VIP information are allowed to download academic papers for free, and the "OKMS Wisdom" platform of China Knowledge Network will also be opened for free. Whip. Com, founded in 2000, is one of the largest comprehensive literature service websites in China, and is committed to building the world's leading Chinese periodical literature service platform. The website has established a strategic cooperative relationship with Google Academic Search Channel and Baidu Library, and provides all kinds of academic papers, model essays, primary and secondary school courseware, teaching materials and other documents for download. So there is no charge for VIP to download papers.