The site is established according to principle of accessibility, main layout are dichotomy parts:(1)Navigation, (2)Main service link section, (3)Main content. The Accesskey("Accesskey", also"Hotkey" named) used in this site are designated as follows:

• Alt + L: (Head) Navigation, containing the links to the major sections of our site.

• Alt + S: (Leftside of below) Main service link section, providng the links of main service item in this site.

• Alt + C: (Middle position of below) Main content, providing the main information of the every page.