F_1=F_2:F_2(1)xy=10(2)lim_((t,0)t(t+1)(t-1)+2t(√2+12t_1^2)(3)xy,lnabdx=yea_x(4)=lim_(x→0)_(y→0) 相关知识点: 试题来源: 解析 (1)grandma;reading(2)are;favonte(3)log0eh0ede(4)Coffee;favonte 反馈 收藏 ...