在用刻度尺测量某物体的长度时为了减小误差应进行多次测量取平均值下列关于多次测量的做法中正确的是 A.每次都必须以尺的零刻度线为起点 Template




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tomski在用刻度尺测量某物体的长度时为了减小误差应进行多次测量取平均值下列关于多次测量的做法中正确的是 a.每次都必须以尺的零刻度线为起点 coloring