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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 sitemap of this site, search box, versions of this site.
Alt+C:Main content area shows the content of each page
Alt+Z:Bottom Link area.

If your browser is Firefox, Press Shift + Alt + Key to jump. For example, press "Shift + Alt + C" to jump to the center of the page.
If your operating system is MAC, Press Control + Alt + Key to jump. For example, press "Control + Alt + C" to jump to the center of the page.

When the project tab of this website cannot be clicked with the mouse, you can use the following keyboard operations to browse the website.
← → or ↑↓:Press the left and right keys or the up and down keys to move the label order
Tab:After staying on the label, you can use the Tab key to jump to the content and browse the information. When you encounter the radio button, please use the ← → or ↑↓ keys to move the order of items.
Tab + Shift:Press Tab + Shift to jump back to the previous data; when jumping back to the tag item, you can continue to use the ← → or ↑↓ keys to move the tag sequence.
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