?????????????????2??14???????? (??????)???14??????????,????,???6????????????????????????,???

????????6???????????????????????????????????? ??

????????????????????6??????,??????????????,???,???????????,?6.7???????????,???????4?????????????

?????,?6?????????????????,???????????????????????,???

??6???????????????????????,??,?????????????????????,?????????(???????)

???????:????

??

??:???????????,??????????,??????????????