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

Accesskey guided as below:
• Alt+ULinks on the top area, there are covering all kinds of languages script and main items.
• Alt+Ccontent area shows the content of each page.
• Alt+LLinks on the left area include the sub-connections of individual.