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This website is based on the design principle of accessibility and uses keyboard shortcuts to strengthen the browsing convenience Layout is divided in 3 areas：
1. the main menu zone at the top、2. the content zone at the center、3. the related information zone at the bottom
The following keys are set as the Access keys ( or speed keys) of this website.
Alt+U：Upper block, containing the links to the services of this site, search box, font size setting and versions of this site.
Alt+C：Main content area shows the content of each page.
Alt+Z：Block the link below, this website links and other contact information and so on.
Alt+S：Website Search.
1. the main menu zone at the top、2. the content zone at the center、3. the related information zone at the bottom
The following keys are set as the Access keys ( or speed keys) of this website.
Alt+U：Upper block, containing the links to the services of this site, search box, font size setting and versions of this site.
Alt+C：Main content area shows the content of each page.
Alt+Z：Block the link below, this website links and other contact information and so on.
Alt+S：Website Search.
- 1. Tours and Admission
- 2. Exhibitions and Events
- 3. Research Collection
- 4. Publications
- 5. About Us
- 6. Contact Us
- 7. Announcements
- 8. Accessibility
- 9. Privacy Policy & Security Policy
- 10. Open Government Declaration
- 11. Video
