2???????????250g???1????15????3???????????????????????4??????????I??????????????????????????????
3??????????????????????????????????????????????????????3????????????????????????????1????1????????????
4??????????10g????5g???2g???????10g????10g????5g????10g????12g???11g????25g????????10g????10g???2g???????1??15??l???????????????????????????????????????????????????
5?????????250g?????100g?????????????????????????????????????????????????????????????????????????????????l???????????????????????????????