4? ?????? ???? ??????? ?????? 2? ???? ?? ??? ???? 1?? 2?? ??? ????? ? ?? ??? 4? ????? ?? ??? ??? 1????? ?? 9―0 ??? ????.
???? ?? ?? ???? 6??? ????? ??? 8??? ??? ???.
??? ???? ?? 4???? 18?? 7??(?? 0.389) 3?? 5??? ??? 0.722? ‘????’? ??? ?? ??? 0.263?? 0.267? ????. ???? ?? ????? ?? ??? ???? 10―7? ??.
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