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

2???????

3??????????

4???????24??

5??????98??

?????6?????????15?? ????“pptv online”15?????????????????,????“????,?????????????????,??????”???

?,?1????????????5????,??1500?????,??1.1?????(??????????????????2200???????)????,???????2170????,????????3.5????????????(????????7000???????????)?

??????,???????????????????????????,??????????????????,?,????;????????????,?????,??;?????????,???????????????

???????“????????,?,????”????,???:

???????????????:???????,??????,??????,??????????????;??“????”:???????,??????????????????????????;???????????:????,??????,?????????????????,??????????(??) ??:?????????????