???? ????? ??????? ????????? ?? ??????? ??????? ??????? ?????? ???????? ?? 2010/03/31? ??? ???:(1) ??? ???? ????? ???? ????? ????? 21 ????? ???? ????? 241 ????? ???? ????? ??????? ?? ????? ?????? ???? ??????? ???? 91%? ?????? ???? ????? ????? ?????? ???109 ????? ????. (2) ??? ?????? ??????? ???????? ???? ????? ????? 451 ????? ???? ????? 318 ????? ???? ????? ??????? ?? ????? ?????? ???? ??????? ???? 42%.(3) ??? ???? ??? ???????? ?????? ???? ????? ????? 312 ????? ???? ????? 241 ????? ???? ????? ??????? ?? ????? ?????? ???? ??????? ???? 29%.(4) ???? ????? ?????
???? ????? ??????? ????????? ?? ??????? ??????? ??????? ?????? ???????? ?? 2010/03/31? (??
