?? 3.9???????“??”???? ??????????“???”

????:1????????:?????q?
2??????????
3?????????????
4???????????
5??????????
????“?????”?????:????????????????“???”???3.9??????“??????????????”,???,“??”???????,??????????????“?????????????”?
????,??????????????«???????????????(??)»???????
2???????21?????????????????????????,?????,?“?”“?????????????”???????????,“?”???,?50????????????????????,????????????????????????,???3.9???(???????????????? ?????? ?????????????????? ????????????????????????????????????)
???:??????????????????