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

2???????

3????????????

4???????

5?????????

6?????????30????????????????????,?????200????????

???42???????????21????????????????,????????????????185??????,???????????110????????????????????????????????????????100??????????????????????,?100%????????????????????????,??????????????????????

?????? ???:???????????,???????????????????????????????????20??,??????85%???????????,?????????????60?????????????????????1500????????????????????????,??????????????

??????????,????????300????,?????10??????????,??????,???????????1.2?????,?????1.3???????????,??????????????

???? ????????????????:?????????????,???????,???????????????????????????,??????????,???????,???,???

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