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。Safety and Privateness: We regarded companies which offer protected access and protect user facts without having compromise.分辨率（resolution）就是屏幕图像的精密度，是指显示器所能显示的像素点数的多少，由于屏幕�