???
????
1.?
???????????????????;??????????????????????????????????
2.???
???????70??65%1219??????????????????????????????????????????????k???????6??????80%24????20%????????
3.?
????????????????????????????????BCT??????????????????BCT???LHFSH????????????????24????????????????????
4.????
????????????????????????????????????????(1)?(2)????(3)????????????????????
??????????
?????B???
1.?
???????????????????;??????????????????????????????????
2.???
???????70??65%1219??????????????????????????????????????????????k???????6??????80%24????20%????????
3.?
????????????????????????????????BCT??????????????????BCT???LHFSH????????????????24????????????????????
4.????
????????????????????????????????????????(1)?(2)????(3)????????????????????
??????????
?????B???