ɽ|t(y)W(xu)ߵȌƌW(xu)У
ɽ|I(y)W(xu)ԺD^
W(xu)У^(q)D
ؑcI(y)W(xu)ԺD^
ʡD^
(j)t(y)W(xu)ԺУ^(q)D
l(wi)I(y)W(xu)ԺD^
ϿƼW(xu)D^
ɽ|ʡuڶl(wi)W(xu)У