???????2?16?? ?,?,2???16??????????20??????17????20??,?????????????????????????????????????????????????????4~6??????????7~8??????;???????????????????????????????????7???????????????????8??????

??:??

??:

1????????????????????????????????????????????????,?;

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

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

4??????????????????,????????

??:????? ??“??92??95?”????

?? ?????????:7?? ?7?8??????

????:1???92??95?:???????

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

3???????V

4???????

5????????????

???????2?16?? ?,?,2???16??????????20??????17????20??,?????????????????????????????????????????????????????4~6??????????7~8??????;???????????????????????????????????7???????????????????8??????

??:??

??:

1????????????????????????????????????????????????,?;

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

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

4??????????????????,????????

??:?????