40 元券Protocol9783659770395ProactiveInternet¥4640去看看上海外文图书音像专营店发布了按需印刷Research on Proactive Routing Protocol in Internet Protocol Version 6[9783659770395]20 元券Protocol9783659770395ProactiveInternet¥4080去看看澜瑞图书专营店发布了【4周达】Research on Proactive Routing Protocol in Internet Protocol Version 6 [9783659770395]