ѧã һ10000ԪX 4= 40000Ԫ 2008ҵΪ600 ÿ궼УҵҲ
רã һ7000ԪX 3 = 21000Ԫ רǼûѧû
ͨϰǮ һʣ500X 6 = 3000Ԫ Զб仯ţһطϰ࣬Ҫ¿ʼ
Լѵ ѧѽҪ4000ԪʱֻҪĸ¡ 21ҪǴĵ˲ţҵǰdzáڹ̼ܽÿ궼ӣҲÿ궼ǣ㵽ϰһ
ǷѡͶ4000ԪıһأϣǶиǵѡԶԼѵԶӭ