将被测试件的变形转换成变换量的元件,称为电阻应变片。
A. 电阻,转换
B. 力,敏感
C. 位移,弹性
D. 电阻,敏感
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可以使用应变式电阻传感器测量。
A. 温度
B. 密度
C. 加速度
D. 电阻
压电晶体表面所产生的电荷密度与。
A. 晶体厚度成反比
B. 晶体面积成反比
C. 作用在晶体上的压力成正比
D. 作用在晶体上的压力成反比
压电元件受力的方向与产生电荷的极性。
A. 无关
B. 有关
C. 不确定
D. 以上都对
Whatever pressures there can be or inferences one can make, people become what they do, though it may not be in compliance(符合) with their true desires. Therefore, we should all bear in mind Kurt Vonnegut’s advice: “We are what we pretend to be, so we must be careful about what we pretend to be.”What does the author mainly discuss in the passage?
A. Personalities and attitudes.
B. Preferences and habits.
C. Behavior and personalities.
D. Attitudes and preferences.