6-9???????????????

????:???????:400?4????qq

????????1??????????????????5??? ?,??8?????6??????,?,???????????????????????????,?????????1????????????,?????????????????200??

??

6-9?

???????????????????,6????9?,????????????4~6?????,???????????????????????????????????8???????,?????????????4~6???????????????;7??9????????????????,???????,?,??

????

1??5?8????6?8?????,?????????????????????????????????,??????????????,?(5.0~8.0????)?????4~6?????,?,??????????????6~7?????????

????(1??5??8?-6???????????????8????)

1??????6?8????7???????8???????????????,???????????????????,?????,???????(5.0~8.0?)????????????????????????????????????????????????????????4~6?????

??(1?6????8??????-7????????????????????8????????)

1?????????????7?8??8??8?,??????????????????????????????,??,??????????????????????????????????????????5~6??????????

???????????????(1?7?????8??????-8?8????????) ???????????:???