This website is established upon the principle of barrier-free website design, and the primary content of its website lay is found in 4 major categories ：
(1) top Block Area，Blind-leading brick is found at the left-handed side of upper selection menu。
(2) Left Block Area，Blind-leading brick is found at the upper side of the left-handed selection menu。
(3) Content Area ，Blind-leading brick is found at the immedaite upper side of the content area。
(4) Right Block Area ，Blind-leading brick is found at the right side of the content area。
