????????????????????С????????????а?????3?????5???????????
???????50g??100g??200g??500g??1000g??2000g
??????????????????κ????????????????????????120g???;???????????350g??????????????????
?????а???????????????????????????????????????????η??????е????????????????30-50??е????50??100???????100-200????????????????????????????
??????С?????????
????趼????????????????????????????裬?????????????3???4?????????9*6cm????????????????11*6cm?????
????????????????????а????????????????????????????????????
