• The upper main menu ribbon.
• The central content area presents the web content of each web page.
• Footer site information , with quick links to each unit.
• Copyright content area below.

• Alt+U key：The upper main menu functional area, this area is the website navigation and home page and the main menu area of ​​this website.
• Alt+C key：The central content area, this block presents the webpage content of each webpage.
• Alt+Z key：Footer site information.
• Alt+B key：Copyright content area below.

※When the item tabs of this website cannot be clicked with the mouse, you can use the following keyboard operation methods to browse the data:

• Drop down main menu： TAB key to navigate to part of the main menu title, you can press "Enter" to expand or collapse the drop-down menu.
• Search keywords： Users can use the keyboard shortcut "Alt + S" to jump to the keyword input box.
• ← → or ↑↓： Press the left and right keys or the up and down keys to move the tab order.
• Home or End→： You can jump directly to the first or last item of the label.
• Back to previous page： Users can use the keyboard shortcut "Alt + ← Left Arrow".

※When filling in the form, in addition to using the Tab key to move the filled data, you can do the following when encountering an option button or check box：

• Radio button： You can use ← or → to move left or right, and the space bar can also be used to select.
• Checkbox： Use the blank key to check or uncheck.

※Instructions for the shortcut keys of each browser：

• Google： For Chrome, if the operating system is Windows, use Alt + shortcut key code to operate, and if it is Mac, use Alt + Option + shortcut key code operation.
• Firefox： Please use Alt + Shift plus the shortcut key code operation.
• Safari： If the operating system is Windows, please use Alt + shortcut key code operation, if the operating system is Mac use Alt + Option + shortcut key code operation.
• Opera： Please use Shift + Esc plus the shortcut key code operation.