(dng)ǰλã߿W(xu)W(wng) > V|ʡW(xu) >
1
^I(y)g(sh)W(xu)Ժ
V|ʡ
^
2
βI(y)g(sh)W(xu)Ժ
β
V|W(xu)
V|ʡW(xu)ǰʮ202
V|^õĹk
V|^õıа202
߿־ԸI(y)xָϣ