????:1???????????:??????

2??????????

3??????????????

4????????100???

5???????

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

????:?????

?????????:

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

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

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

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

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