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2???????????200?

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

4???????

5?????

??10????????18??????? ???????18?,???,???(??????)????????9800?,???2.8??

?2.6???????????????????????2000??????????????,?223?,?37???,??????????468???(????????);??????68?91?,??????21????,??????2.4??????????????????35.4??;???,??409??,??????????1.3??,??????1.01?????

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