This website is based on the design principle of accessibility and uses keyboard shortcuts to strengthen the browsing convenience. Layout is divided in several areas：
Top-main area,midst-content area

• Accesskey guided as below：
• Alt+U Links on the top area, there are covering all kinds of languages script and main items.
• Alt+C Main content area shows the content of each page.
• If your browser is Firefox, the shortcut keys are used by Shift+Alt+ (fast key letters), for example Shift+Alt+C will jump to the middle of the page, and so on.