65.
yuӵظоԺ磬תһķһöyuͷȴָʯæ͵һ㿪Ϯ
ͬʱһɫӰԼַסѩɱ֣˻У㼱뿪ңΪЩԵ𣿡
δİѩ̧ͷȴɫҰףŭ쳣ټողŲ㶪һֻ֣Щ£ҲûԤڵķУЩ֪Ľ䡣
úøһٽѵټѩܾС¹ק·еĻСһЩƺҲ˵ʱһǰվŵ⣬Ц㻹أ
һЦyaoгݵĵһûаүǰȻDzôǹԹԵĸߣҪǷһ
һټмĵСjianˣƾҲ
ǾֲҲˡ£ʧȥĵҲ
֪裬ⳡȴòټͰѩȫ֧ţDzС
ˣǰ£үͽ㻹һȥɣʤȯգǵ⣬ȻȴǺóԺúȵģܱ»Ұǿ
ֲcaoģһټЦСѩңվҪһˣһͶ̥±㻹ҵŮˣ
ſ˭ҪŮˣѩˣǽ˼Ҷеĺøоƻ
һǻɱ֣һDzԨ峿ķ紵ɢ˶˵ijµСݷͷ֤ʲô
Щɱȴסˣʲôۿûˣ̸˵Ĵ𣬡ǣС㽫Ůǡ
õɱֳѾΪĶΧȴ˿ûзֿ˼иɱǰץˣȴ˸գһţŵ£һɱĴӵȴ˸ա
ѩֻоڿնŵ䣬̫죬Ҫеȴ˶»˶粻ϵĹtiȴһо˿ů۾˫ޡᡢķ
İѩо͵Ķһ£ټƺһŵ̵Ѫζ
=>>(δ,һҳĶ)