??

?????????????.??????????.??????????????????????????????????.

????2~3?????????.????.??.?????????;???????.???:???.??????????.???????????.???????.??.??????.??.?????.

???????.????.?????.???.???????24~48???1~2.??????????2~31???2~3?????????????.

?????????????????????????????????????????.??3????.

?????...

??????????????????????????????????????????????????????????
????23?????????????????????????????????????????????????????????????????????????????????????????
????????C?
1.? ???????????????????????
2. ??????????????????????????
3.? ???????????????????
4.?C ?????b?????? 11????}?????
2???????
3?250????...

????
1.????????????????????
2.????????300?
3.?????????????
4.??B???????
5.????????
6.??????
7.??????????
??
1. 50?25???1000????? ?????????????? ?100???????????? ???
2.???(15)250???1000? ????????250?15???? ???????????? ????????? ?????
3.??100?100?????????? ???2???
?????????????????????????...

??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
???????????????????????????????????????????????

2???????????????????????(???)(?)?(?)(??????)(?)

???????????????????????...

1.???????????????????????????????????????????????

2.???????????????????????(???)(?)?(?)(??????)(?)

?????????????????????????1?????????????????????

?????????????????????????????12?????????10??????????23?

3.??????????????????????????()??????????????

4.????????????????????????????????????????...