??: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???????????????????,??
??????:?????
??
???:????