有一栋楼房有17层，相邻两层间有17级台阶。某人从一层走到十一层，一共要走多少级台阶？7Z,p4C8j)],`0C2?/b7I3z+p0_-p+W2E-b
算式：提示0j;|1?(j9V+n'E9~6Z4I5H7Z,p4C8j)],`0C2?/b7I3z+p0_-p+W2E-b
答：一共要走,|0W.Y(R级台阶。7Z,p4C8j)],`0C2?/b7I3z+p0_-p+W2E-b