奥密克戎 进入大脑案 A coincidence, but it does make me believe that the world really exist in love at first irresponsible. But afraid if now don't I will never lose you , as two of the fellowship h as


咒台湾电影上映时间案 2.25(1-x)²=1.96(1-x)²=(1.4/1.5)²1-x=14/15或x-1=14/15 再求解就可以得到案。


缩小范围英文案 y=1/x y'=-1/x^2 曲线在点(1/2,2)处切线的斜率 k=y'|(x=1/2)=-4 切线方程为y-2=-4(x-1/2) 即4x+y-4=0 法线斜率k'=-1/k=1/4 法线方程为y-2=1/4(x-1/2) 即,2x-8y+15=0