2߶ѧڣ½ѧ18ꡣЩСǡ¡ף ġ Ҳμվۻᡣ ѧ룬˼˺ܾã ѧң ˵ǰҵѣǶҵΡȥμӣǿ϶ܸˣǣѧ ʱȡ˷ѣܾѧģ ˼֮Ҿᣬ ѧһַʽףաҷɲ֯ˡ18 ꣬dzΡ ڰϣȫѧСǡǽ˼ӵףѧǹʮ֮ ѧdzԣе˵Ҫѧңе˵Ҫҵңе˵Ҫͼһ ҸҸѧǷԼѧľѧʶҪʵ 룬ҪúѧϰҪ壬˼ʽӦ λ֮ ѧǵѧϰͷˣʦϵǢˡ Сǡǰԭƻ͵Ǯ һ̨ˮڽ Ҵ˷㡣 Щͬ¾֯ ˷ѱѧϰʱ䣬ЧҲЧ¿չƵĻ ⣺ӽʦְҵĽǶȣСҡĽΪ
д⣨1С⣬50֣
1кܶ˽κһ֣֣ԹˣûаҸ ȨκһǶҵԼҸ ݲ˼дһƪ˵ġ
ҪǶѡԶ⣬ 1000 ֡
9 ҳ 13 ҳ
10 ҳ 13 ҳ
ο
һѡ⣨29С⣬ÿС2֣58֣
1C 2𰸣B 3B 4C 5A 6A 7D 8A 9B 10A 11A 12B 13D 14C 15D 16C 17A 18𰸣C 19C 20B 21A 22C
11 ҳ 13 ҳ
23𰸣C 24A 25B
26DҹѧУιĿͽѧɼҹµǰ༶ʵУѧġ͡ġ쵼ʽñȽ϶ࡣ 27B 28D 29B
Ϸ⣨3С⣬ÿ14֣42֣
1(1)Ψ˼ʫʴѡ
(2)йŵʫǡ϶ָʫеĻ涼ǡƪģDz˾û֧ɢҵģоǡƪġЩڶߵУ Ϊһܲɷֵл壬ʵһѪϵ 2ʦǡģʽĽʦְҵ
1ʦʽȫѧĽǴٽѧȫ淢չĽ аѧʦȥμվۻᣬλᣬչᣬ ȫѧѧѧϰѧˣȫѧӶѧȷۡ ֵۡ۵Ľ
2ʦˡΪѧۡѧķչйɵģʦ ӦѧǷչеˡ еʦѧ룬 ֿѧķչ˳ ԡԵص㣬ٿˡ18 ꣬dzˡᣬѧĸ ʦѧķչĹɡ
3ýʦΪ˽ʦӦΪѧѧϰĴٽߡеʦÿ ʽСǡգѧԼʮȡõЧʹ ѧѧϰͷӣʦϵǢ ʦӦʽڽѧмʽҪ ѧɳ
д⣨1С⣬50֣
1һ(50- 38)ΧƽʦдкϡʦҪѧȷĴ۹̹ۡ Ȼ(ѧϰ)ĴۡʦҸ⣬ͻݳʵСṹϽȷݵ䡢(ѧ
12 ҳ 13 ҳ