知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 This menu's updates are depending on your activity. The info is only saved domestically (on your Personal computer) and hardly ever transferred to us. You are able to click on these one-way links to clear your background or disable it. Q：似乎某些功能仅在经典视图中可用。但是在顶部导航栏中没有链接“经典视图”（德语版的免... https://industrialcaluanie.com/