????:1????????:????szsn

2?????300?3??????

3???????????

4?????????

5??????50??

??2?????3?????? ??,2??3?,??,?????????????????????????4~6?,?8?,????4~5????????,?7~8??????????????????6~8?????????9~10???????

????2???????????????3??????06??????????????:??,2?3?08??4?08??,????????????????????????????5~6??????7~8??????,??????6~8??????????9~10????????????????????????????????????????7~8????????9?,??????????9????????10??

??(2?3????08?-4?08?????)

?,?????????????????,??

????

2??3?08??4??08??,??????????????????????????????????????????,??????,????????????????????????????????????????????????????????4~6?,????,?????????????????????????????????8~9?????????7~8?,?????????????9~10???

?(2????3????????????08???-4???????????08?)

2?????????4??08????5??????????????????08?,?????????????????????????????????????????,????,????,??????????(10~19??)??????????????????????????????????????????????????????????????????????4~6????,?,?????8~9????????????7~8????,????????9~10??????????

?????????????(2??4?????08??-5?08????????)

2????????5?08????????6??08????????,???????????????????????????????????????????????????????????????????????????????4~6?????????,??,?????????????8~9??????????7~8??,?9~10??????

??(2?5?08?????-6?08?)  ??:??????