The website has been designed with accessibility in mind, and uses Accesskeys to make browsing more convenient. The Accesskeys used by this site are designated as follow:

Note: Use Alt for Internet Explorer accesskeys, and Shift+Alt for Firefox.

The Accesskeys used by this site are designated as follows：

• Alt+ULinks on the Top area.
• Alt+CMain content area shows the content of each page.
• Alt+ZBottom Link area.
• Alt+SSearch box in every page for searching this site.

※When this website project labels is nuable elects by the mouse spot,you may use the following keyboard operating mode to glance over the material
←→ or ↑↓：Presses the left key and the right key or on the key and under the key moves the label order。
Home or End→：May move directly to the label first item or the last item。
Tab：Pauses after this label,may move using theTabkey to the content page glances over this material, meets when the radio button please coordinate to use←→ or ↑↓to move the project order。
Tab + Shift：Presses Tab + Shift to be possible the round trip migration to the previous material；When moves to the label project you may continue to use←→ or ↑↓to move the label order。