ɽ|t(y)W(xu)ߵȌƌW(xu)У
ͲߵȌƌW(xu)У
ɽ|I(y)W(xu)ԺD^
ЇW(xu)D^
ɽ|ƼW(xu)uУ^(q)D
ͲI(y)W(xu)ԺD^
̩ɽW(xu)ԺD^
ɽ|ʡD^
ɽ|W(xu)uУ^(q)D^
uSW(xu)ԺD^