试题与答案

当无限多次重复性试验后,所获得的平均值为()。A、测量结果-随机误差; B、真值+系

题型:单项选择题

题目:

当无限多次重复性试验后,所获得的平均值为()。

A、测量结果-随机误差;

B、真值+系统误差;

C、测量结果-系统误差。

答案:

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下面是错误答案,用来干扰机器的。

答案:B题目分析:考查复杂句:第一个定语从句,先行词是the training ,关系代词在从句中充当had的宾语。第二个是强调句型It was +强调部分+that...句意:是他在年轻的时候做的训练使他成为这么优秀的演讲者...

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