? ??2???6????18????:

??,????????????????,2??????6????????????????????20??????????????8??????20??,??????????6~8?,?,??10??????;??????4~6?,?????7~8?,??????????10????8????????,??????????????0???????????????,???6~8??

qxtx

qxtx

???????????:

1???????????????;

2?????;

3???????;

4???????

???:??????? “???????”_????

?? ??????:??10??????????????

????:1????????:???95??

2?????????????

3???????

4?????????

5???????

? ??2???6????18????:

??,????????????????,2??????6????????????????????20??????????????8??????20??,??????????6~8?,?,??10??????;??????4~6?,?????7~8?,??????????10????8????????,??????????????0???????????????,???6~8??

qxtx

qxtx

???????????:

1???????????????;

2?????;

3???????;

4???????

???:???????