This website is based on the design
principle of accessibility and uses keyboard shortcuts to
strengthen the browsing convenience Layout is divided in 3
the main menu zone at
the top, the content zone at the center, the menu zone on the
left side and right side, the related information zone at the
The following keys are
set as the Access keys ( or speed keys) of this website.
Alt+U：The top of the
main menu links area.
area shows the content of each page.
Alt+L：Links on the
Alt+B：The bottom of
the main menu links area.