????:1?????qt??????:?????????

2???????????

3??????????

4???????????

5???????c4???

????????????????????10????????14??????? (??????????? ???)??????14?????????????2???,???????,???????????

???????,???????,??????701.6????,?1.4??,??????????30.1?????????????,???550??????????,???????????10????????21???

???????,????????????????????22??,???20??,??????????????20????????4??,??????????????

??????????(????????)???????????,????????,??????,?????????????,?????????????26?????????????????,???100??????,?125??,?????????????????,???????

????????????(??????)?????,?4?????,?,???????????????,?3????,?????????????,?????????????

??,?,??????41%????????,???4?????????,??????????,??

????,??????????????????(?????)?26?????,??????100???????,???15%,????????????

?,??????500?????,?????????????550?????????????,??????3????????,????????????????,??,????????????????4????(?????) ???:????????????