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。 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。 d : the automated adjustment of the attention for viewing at different distances effected mainly by alterations within the convexity of the crystalline lens also : the vary in excess of which these kinds of adjustment is feasible company solutions in a ... https://alvas036cpc3.wikicorrespondent.com/user