?:7?? ?????????7?8??????
??????????2?????????16?? ???????,??????,2?????16???20?????????17?20??,???????????????????????4~6???????????????????????7~8??????????;??????????????????????????????????????7????????????8???????
![](http://i2.chinanews.com.cn/simg/cmshd/2025/02/16/187d7f04212f4024b76fe8abf7209637.jpg)
??????:
1??????????????,?;
2???????????????????,????????????????????????????????????;
3???????????????????????,???????????????????;
4????????,?????
?????:????????
??
???:????