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

?????????????????0.8?,????????50????,??????40????,??????????300???,????????????

????:?????????????????????0.5????,?????????,?????????

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

????????????????????95%????????,????,????????,??????????????????,???????????,???????????

????:?????????????6???,????3?????????????,??,??????????3~5??????????,??????????,????????????

????????????1???1?,??250?,???????,?????10?,??????,????,????????????,??????1??????????????????

????????????2???????30?,??10?(??),??????1?,10??????????????????????

????????????3???1?,?????????20???????,?????,????????????????????????????

????????????4?????1?,????,??3?????????????,????????,??????,???,5?7????????????????????????????????

????????????5???50?100?,??5??????????,??,??????????????1??????????????????

1??????????????????,??????????????????

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

3??????????????????????????????,???????????????????????????????,????????????????????

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5?????????????????????????????,?????????????????????????