??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
?29~32??????????
?29~32??????????
??
????:
1????????:?????
2???????
3?????????????
4?????200??500
5??????????
????
6
%
???:??