??
??2??17? (?? ??????????????)???17?????????????,?,??????????????10??
????,17???????????????,??,18??????,19?,??????????????20?21???
?,18?????,???????,???????????????????,????????????????:??????8???10??
19??????,????????,???????????????????????:??8???12??
???????????,???????????,???????,??(??????) ?????:????????????
?????????
???????????? ???????????10??????????????