题目内容

She ___ herself stoically in her time of grief.

A. conduct
B. conducted
C. conducted of
D. conducted from

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Which of the following words has the opposite meaning from the others?

A. increase
B. reduce
C. lower
D. shorten

波长为546.1nm的平行光垂直地射在1mm宽的缝上,若将焦距为100cm的透镜紧贴于缝的后面,并使光焦距到屏上,则衍射图样的中央明纹中心到第一级暗纹中心距离多大？（）

A. 0.546nm
B. 0.623mm
C. 0.546mm
D. 0.245nm

按照分类,阈值指标属于( )

A. 灵敏度范畴
B. 稳定性指标
C. 过载能力
D. 量程范畴

下面不属于传感器静态特性指标的是( )。

A. 重复性
B. 线性度
C. 固有频率
D. 灵敏度