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 This web site is divided into four sections:
(1)Top of the menu (2) Navigation (3)
Main content (4) Related content
The Access
Keys used by this site are designated as follows, and you can use the
Tab key to move on,
or Shift + Tab key to back off.
- Alt + U: Top of the menu, it contains return to the home page, site
map, to contact us, and so on.
- Alt + L: Navigation, containing the links to the major sections of this site.
- Alt + C: Main content, providing the principal information of the page.
- Alt + B: Related content, containing the links to the pages of the next level and the other relevant information.
- Alt + F4: close the window
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