a,b满足0

a,b满足0 a,b满足0 实数a,b满足0 角a,b满足0 实数a,b满足0 有理数a,b满足a>0,b 有理数a,b满足a>0,b 有理数a、b满足：a>0,b 有理数A.B满足A.>0,b 已知有理数a,b满足a+b>0,b 已知实数a,b满足a+b>0,b 1.若实数a,b满足0 已知两个整数a、b,满足0 若实数a,b满足0 若实数a,b满足0 设事件A,B满足条件0 已知a,b,y满足0 已知实数a.b满足0