本刊 2 0 0 3年第 1 0期《伏安法测电阻的改进》中 ,本人认为原文第三段“如果在实验中电表的分压和分流能够求得 ,这样我们就可以消除误差”这句话有误 .误差是测量值和真实值之间的差异 .误差不是错误 ,错误是可以避免而且必须避免的 .而误差的产生是由于测量工具本身的精密 In the 10th issue of the “Improvement of Resistance in Voltammetry” of 2003, I personally think that in the third paragraph of the original text, if the partial pressure and current diversion of the meter can be obtained in the experiment, we can eliminate the error. This sentence is wrong. The error is the difference between the measured value and the true value. Error is not an error. Errors can be avoided and must be avoided. The error is due to the precision of the measurement tool itself.