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۰ʥԶΪƽ̨Ľϣͳѧ룬¶߿֮ϣ˵Ǽٵģסߵ½ѰһЩȫУסˡ
ɫ罫סʹķ粻ѷͳɡ
ӹţ״˿˿ƣDZĿԶеģ۰ʥһӣٶȸߴ60000kmhȴûκ
۰ʥרְ˾ˣ᷸ͼĴ
еĿĵڸɴdzijУѾ˴ĿѧҺ쵼ˡ
Dzʵ飬Ѿ˸ŭֵõ˼ѧ֧֡1840ѧ״ֱӶš
վڽ⣬ɢֹ̫ϵͣȻǰöûвκ쳣֪ΪʲôЩ
۰ʥųɣ±İ˹̹ʷĽԴ̫յܺ͵İٱһ̶ȵĵ˴ȵļٵ
˹̹һĺɫ˿ᴩʣŵijᴩ½غͺԽͬĹҺ͵չֳһС
ڰ˹̹½ز֣ҲԿа˹̹ĹسУ˹̹֮ˣɳĮãɽᴩγһάƽϵĺֱߣ;һС
ںһЩһĺɫڴ֮ϡΪ˽ˮѹµʩѶȣ˹̹Ǽˮϵģ֮ǴĺϽ֧ĺ
й˳֮Ϊư˹̹ϲΪܺϽ̫յΪ
廹ע·Ļвڿʣ˹̹壬Dz˸ٹ··ҿвˡ
ͳ˵ͷԣֹģĹֻΪѧʵþҲ̫ϧˣΪй̵ĽǵĹʦ˸ٹ·ʹ·ÿٹһվǸոշɹǾ֡ݡǶڵϢĸʩһӦȫ½ϣЩݡӵijУвٻҶ࣬ڸɴƶСңһԾΪ˷еĹ֮һ
ͳ룬˵˹̹ŵδˣֻҪ1000ԪĻƱܴɡƵһȦijɾͣǴǰŵηʽ֮һ
ˡͷֻҪҵЧ涼ֵȥ
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