题目点A(2,3,4)到直线x=y=z的距离是( )。A. sqrt(2)B. sqrt(3)C. 2D. sqrt(5)点$A(2,3,4)$到直线$x=y=z$的距离是( )。A. $\sqrt{2}$B. $\sqrt{3}$C. $2$D. $\sqrt{5}$题目解答答案A. $\sqrt{2}$