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

2???????

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

4???????

5???????200??500

???10??21? (???? ?)??21??,??,????6.75??????????(?????????????,???),?????11.1%???,??4.39???,????9.1%;????2.36?????????????,?????15%?

?????????????,???,????,???????????,???,???????

????????????????,??,???????????????????????????,????1.08??,??????10.1%;???????????????????????????????????????15.3%?7.3%?5.5%?????16.3%???????????????????,??“????????”???2.47??????,??9.8%?

???,????4.3?????????????,??????17.1%,????6??????????,????63.6%,?????3.2????????????

???,??????????,??????????,???“????”“???”????????,??????,?????(??) ????:???