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

????:?????????:???????????

??6?????????????????????14? (???)6?????????13???,??250???,????????????

??????????,?1000??????,???

13???,???????????????250???? ?????

????250???????,?????82??????????????????????,??76.2????

???,??62.5??,???187.93?????????,??623.13?????????????

??,????????????????????,???????“????????????????”?????????????,???(???????)

??:?????