This website is based on the design principle of accessibility and uses keyboard shortcuts to strengthen the browsing convenience. Layouts is divided in five areas：
[ 1 ]Top-main area    [ 2 ]Left-selection area    [ 3 ]Main content area    [ 4 ]Footer block.

Accesskey guided as below:
Alt+U：Top-main area, there are covering all kinds of languages script and main items.
Alt+L：Left-selection area include the connections of individual.
Alt+C：Main content area shows the content of each page.
Alt+Z：Footer block.