????????????????????????????????2???????????????????????35%?????????????????????????????????????????????????????????????????????????????????????????
??1?????????????????????20?????30????????400??????????????????????????????????1?????????????????????
??2?????????10????150?????100????????100??600???????????????????5-7??????????????????
??3?????????????????????10????50?????????????500??????????????????????????????????????
??4???????????????15???????30?????????????????????????????????????
??5?????????10????????40??????????????500??????????????????????????????????1??10???????????????????
??6????????50?????????50???????????????????????????????????????????????
??7????????30????????????200????1???????????????100???600??????????????????????5??????
???????????
???????
??1????????????????????????????????????????????????????
??2?????????????????????
????????
??(1)???????40 - 60????????????1??
??(2)?????30?50??
??(3)??????????????????????100???????????????50??
??(4)????????50??????????
