296期：07+08+09+10+13+15+16+18+20+22+25+26+29+30+31+34+36+39+40+41+44+46+47+49【半数特围】开26准
297期：03+05+06+07+08+11+12+14+15+17+19+20+23+26+29+30+31+38+39+40+44+46+47+48【半数特围】开12准
298期：01+03+04+05+06+09+14+15+16+20+22+23+26+27+28+29+30+31+32+38+39+41+46+48【半数特围】开31准
299期：02+08+11+13+15+18+19+21+22+23+27+28+30+33+34+35+36+37+38+39+42+45+47+49【半数特围】开05错
300期：02+03+04+06+08+10+12+19+21+22+23+24+25+29+30+31+33+35+36+39+40+46+48+49【半数特围】开？？