?? ???????21???? ????109?
????:1????????????:??????
2?????
3????????
4?????90????????
5??????
24??????????????????????????,??21??????????????????????????????????????????,109????????,?????????
????21??????????????,?109???????????????????????????????????93??????????,???????????????70%,????????????????,?????????69%?
???? ??????????????????:?????????????,??????????????????????????,???,??,????????????
????,??????????????????????11??? ????:?????????????