This website is based on the design principle of accessibility and uses keyboard shortcuts to strengthen the browsing convenience Layout is divided in 3 areas:
(1)the main menu zone at the top, (2)the navigator zone at the center, (3)the content zone at the center
Accesskey U：Upper block, containing links to the major sections and services of this site
Accesskey C：Center block, providing the principal information of the page
Accesskey L：Bottom block, This section displays links to other information at the bottom of the website screen.