????:1????????:??????vx

2???????

3??????????

4?????????

5???????

??12???????????13?? (?? ?)????13??,???11??,?8.27??(??,??),?????????(????????????)?????10%,????????????????20.8%?

???11??,?????????????“???”??????????3??,??????8.8%?

??,??????????????,???5.27??,??????????????????????15.8%;???2.58??,??1.3%?

???????,??,????????????????????142.8%????????????42.4%?39.8%??????????????14%?

?????????????,???????11???,????????1.01?????,??15.1%;??2612.3????,??128.5%;???????????467.3?????????,????50%???,???????????????9345.2????,??????27.4%;??1248.5??,??25.3%?

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