题目某一过原点的晶向在三个坐标轴上的截距为1,1,0.5,则其晶向指数为( )A. (221)B. [112]C. (112)D. [221]某一过原点的晶向在三个坐标轴上的截距为1,1,0.5,则其晶向指数为( )A. (221)B. [112]C. (112)D. [221]题目解答答案D. [221]