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еռ90%ϵľĻ䶼ǡһһޡƣҲдԼ2%šһޡƵĸϵȺ0.4%ҵΪġһ޶ơһƶУѡҪǶԴãǶΪЩֳɹҪڴ񣬶ѡߴľ
쾱ǡһ޶ƵĵʹһСͺˮݣ峤ֻ18-19ףˮΪʳڱֳԽȴǨ㼾;ҹڡϸ⣬ʺɫҲǺɫֺϾ󻨰һ롣ȺڲѡҪǶԴãԱִβԶͷֻҲǡͬ෴Ĵ񲻵ñߴǿ׳ɫҲʣǵ˷ֳڡʱȻëȻԻҺɫΪϳһСɫİ߿飬粿4ԵĳȻɫݴǰ޵ɫһֱ쵽ۺγһƯɫɫȻȥͬƣɫȴʮƽ
ֳڵżҫΪҲɴ¶ֵر˷ܣΧתתȥҫֵ̬Ļġʱ룬֮ûյĺ˳ɬΪӶȭ֣һɡ־硣Щȫûһ㡰ӺţֻĵվһԿ֡ǵľذѽѷֱ֣ʧܵһǱӴ֮󣬻ʤĴŰͦأġɷռĵң¡ʱΪɡǲͣΪλزݸҶʮࡣȴһʱֺ̬һԹۡȵ֮󣬴ǲǶ׷ӣȥˡֻʵʵſڳУеȫѡΡˣں쾱˵ͳġۡĵλ͹ȫߵˣǲǡһ޶򡱣ǡŮбȺȫ׵Ŀ֣ѹƵĵλӵࡰšŮһ
ں쾱ֵѾڲʳ򷴳ܴܺʧ񶼾нǿѸٲڶѲѵֻصӦȻЩȻҪͷԴΪķֳе㡰ĸϵᡱζеȫĹӷصķѡСšרְѣ͹Ͼ˲ӶԶһЩǳڵĽչһֶԲʳӶѺ׳ӦϴƺǸ顱ϲɡġŮˡʵķչкܴĹס
