?????:???????1.5? ????????

????:??????:???????

?????????????1?????????????4?????????????? (?? ??????????)????,??4????????????????,???????1.5?,????;?????????2??

??,4??,???3??1??????????2???????,??1???????????7?,??0?,????????????10???14?,???????????8?????????10??

???,??????????4???????,??????1.5???1?,??????,?1.5???????,????????????????????????????????????

?,?4??7???????,????,??????,?????????????,6?????,?6??????????7????????????8??????,????5?????????6????7????????

?,??,1?????????4??,???24?27?,???

??????,?,??,????(??????????????????) ????????:?????????????