题目内容

弹性元件结构形式有以下哪几种形式( )。

A. 柱形
B. 筒形
C. 环形 梁式
D. 梁式

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直流电桥输出电压与被测应变量呈线性关系,而在相同条件下半桥差动输出是单臂输出的2倍,全桥差动电路输出电压达到单臂输出的4倍,即全桥工作时,输出电压最大,检测的灵敏度最高。

A. 对
B. 错

筒式压力传感器是一种单一式压力传感器。

A. 对
B. 错

The company's doctor found that she was _______ to carry out her normal work.

A. unfit
B. unfitful
C. unfitable
D. unfits

Six theatre companies have been selected to ___________ this year's festival.

A. take part in
B. take a part in
C. take apart in
D. took part in

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