????:1?????98?:???????????

2???????150

3????????vx

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

5?????????

???11???????22???????????????????? ???22??????????????,??????????,??????

????,??????????,?????????29?????,???????????????????????????????????15?????????????????????,???

?,?????????????,??,??????????????????????????,???,??818.6????,???????????48.8%;????,??????488.5????????????????????????,????????78.6%?

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