第16题: [单项选择]准确度的概念表述不正确的是() A. 准确度是多次测量值的平均值与真值的接近程度 B. 准确度可同时表示测量的系统误差和随机误差大小 C. 准确度就等于绝对误差 D. 准确度近似于绝对误差 E. 准确度与绝对误差成正比 参考答案:C 答案解析:本题考点准确度概念。准确度是多次测量值的平均值与真值的接近程度,用来同时表示测量结果中系统误差和随机误差大小的程度;测量值与真实值接近的程度称为准确度,两者之差叫误差。
A. He is starting the course late. B. The subject is difficult for him. C. The professor is very reserved. D. The book is difficult to rea 参考答案:B 答案解析:[解题思路] 本题是细节题。 [详细解答] 先看题支,再有针对性的认真听。会话中提到“I didn't do that well in chemistry in high school”,由此可