,??X?,??,???,??,???,????,???,,??

????????????
---
????????????---
---
??
---
???????
---
?????????

---

?




??????
??
???
??
??
???
??
???
---
?

?????

??

??

??
---
???//????????
?//???????



???T??
???????
??????
?????

---


???

????C???=???


?C??=?
---

?
???????
---




?

???????
---


??

??????15--30?
---

,
????...

?????????????????????????????????????????????????
???????????????????,??3???68.6 ???k????????????????????????????
??????(?)????????????????????F???????

??

?????????
??????????????????????????????????????????????????????
 
??????
A????22???????????????????????????

B???i??????????????????????

C????????????????????????????????

D??????????????????????????

E????????????????????????????????]????
????????????
?203????????????
 

???
?
?????QQ?????
?? ??
? ??

??
1 ??????[???????????????????????????????
2 ?????????? ????
3 ???????????????
????????????????

??
??
?250?250????10??4???1
?
 
??5???????10?r??
???

?60??40????????500??7??????1~2?3
?

?5?4?3?100?15??????? ??????30?????1
??

?15?100??????????????
??...

??45-70??????????????????????????

?200?
?21?23??????5???^1?23???2?---?2????????????23????????????1530???????????
???200????????????

?????
????????????????????????????????????????????????
?
1?
????????????????
2
?????????
3
??????????????????????
4???
????????????????
???????????

?????
???????h???...