1年前1个回答
你能帮帮他们吗
精彩回答
函数极限计算 若lim(x→∞)【5x-根号下(ax^2+bx+1)】=2.求a,b
1年前
已知曲面Z=4-X平方-Y平方 上点P处的切平面平行于2X+2Y+Z=1,则P点坐标为多少?
1年前
He ______ would do great thins should not attempt them all alone. [ ]
1年前
Though he met a lot of difficulties he ______ had confidence in himself.
1年前
Schools should reward top students who have highest score.
1年前