Graphics and audio support are not necessary, as this system may not even have a monitor or speakers.
图形和音频支持并非必要，因为此系统甚至可能没有显示器或扬声器。
Dangdang Information is not permitted to hold the necessary licenses to operate the business, and is not permitted to sell audio and video products in China.
当当信息无法持有当当运营所必要的许可证，同时也不能够在中国境内出售音频和视频产品。
Dangdang Information is not permitted to hold the necessary licenses to operate the business, and is not permitted to sell audio and video products in China.
当当信息无法持有当当运营所必要的许可证，同时也不能够在中国境内出售音频和视频产品。
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