????u?? 1/4
>§??/????/??>>ú??" />
u?? 1/4 ??>>ò?????í?ó,??????????!
???? 1/2 ???u?? 1/2 ?é?¤...
?(R)?ì??u?? 1/2
?>>????????
??????????u???· 1/2 ?????± 1/2 ?u?? 1/4
???????>>????°??¤??°ss???????¤??°ss??????
>>ù± 3/4 ???????(R)&&26?ê
·????± 1/4 ????>>????
???é?è?? 1/4 °?????????????>>?? ??°??¤??°ss???????¤??°ss???????-?ò?????°?>>??
?ú????u?>>???????20,?????×???????????????
> 1/4 ?ss?¨?ae?????? 1/2 ? 1/2 ?????×???u?? 1/2 ?§×¨?u????u?>>????????ú?????¤??? 1/2 ?ú}