答：不是.只是函数意义上的趋近于0. 例如：1、lim x/sinx = 1 x→02、lim (x-π/2)/sin(x-π/2) = 1 x→π/23、lim (x-π/3)/sin(x-π/3) = 1 x→π/34、lim (x-π/4)/sin(x-π/4) = 1 x→π/45、lim (x-5)/...