单项选择题
以下说法正确的是?
Which of the following statements is true?
A.测量某物体长度的平均值为1.000m,绝对误差为1mm,测另一物体长度的平均值为1.0cm绝对误差也为1 mm,两者测量的准确程度相同。
The average value of measuring the length of an object is 1.000m, the absolute error is 1mm, the average value of measuring the length of another object is 1.0cm, and the absolute error is 1 mm. The accuracy degree of both measurements is the same.
B.除了尽量选择准确度级别高的仪表外,选择较小的量程一定可以减小测量的误差。
In addition to selecting the instrument with high accuracy level as far as possible, choosing a smaller range must certainly reduce the measurement error.
C.在仪表的指示数及量程均相同的条件下,虽然仪表的级别不同,但测量结果的可疑位、误差及最后读数均相同。
Under the condition that the indication number and range of the instrument are the same, although the level of the instrument is different, the suspicious bit, error and final reading of the measurement result are the same.
D.长度为L=7.04±0.06cm,它表示L在7.04附近正、负0.06cm的范围内包含真值的一定的可能性(几率)。
The length is L = 7.04 ± 0.06cm, which indicates the possibility (probability) that L contains the true value in the range of positive and negative 0.06cm near 7.04.