1????????????????? ??????????????????????????????;

2??????????н?????????????????????????δ????3????????????????????;

3??????????????泬??3???????????1????2???????2????2?????????????????????????????????????????????????2??????????2???????????????????;

4??????????????????????Q1XXX????Q2XXX????????????????????????????????;

5???????????????????????????????????;

???????????

1?????????80??;

2??δ???????????????;

3?????10????δ??????;

????????????????????????????????

?????????????κ?????????4???????л??????????????7?????μ??л?

????????

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