问题
单项选择题 A1/A2型题
对同一样本进行重复检测,测定值差别越小,说明该检测方法()
A.精密度越低
B.精密度越高
C.准确度越高
D.准确度越低
E.灵敏度越高
答案
参考答案:B
解析:精密度是指在一定条件下进行多次测定时,所得检测结果之间的符合程度;测定值差别越小,说明该检测方法精密度越高。准确度是测量结果中系统误差与随机误差的综合,某测定值越接近真值,说明该检测方法准确度越高。
对同一样本进行重复检测,测定值差别越小,说明该检测方法()
A.精密度越低
B.精密度越高
C.准确度越高
D.准确度越低
E.灵敏度越高
参考答案:B
解析:精密度是指在一定条件下进行多次测定时,所得检测结果之间的符合程度;测定值差别越小,说明该检测方法精密度越高。准确度是测量结果中系统误差与随机误差的综合,某测定值越接近真值,说明该检测方法准确度越高。
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