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

2?????

3????????

4??????

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

??????2?????8???????? (?????? ????)?8???,????????????????2?(??????????????:??)?,??????????????

?????????????????????????

????11????????50?????????????????,??????????????????2?(??:??????????????)????????????????????,?????????????,?????????????

???,?????????10??30????????3?????,???????????,??,?????

????????????????????,??????50?,????????????????????????????????????????????25??,?????????????

?????,?,?????????????????????????,???19???30????(??????????????)

????:??