???????????1?????27?10?

???????????1??????27????????????? ?,??1??????????27?????????????10???????:

?,1?????????????????27??14????1????????28???????????14??,??????????,??(20~25???????);?????5~15??????????????????????,?????15?????

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

1.???;

2.?????????????????????????????????????,??????;

3.??????,??,????;

4.?,?;

5.??