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【单选题】Section B Directions: This section is to test your ability to understand long conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. Both ...
A.
Having a meal in a restaurant.
B.
Booking a ticket at a station.
C.
Checking in at a hotel.
D.
Reserving a seat in a theater.
【简答题】Section B Directions: This section is to test y our ability to understand short dialog ues. There are 7 recorded dialog ues in it . Af ter each dialog ue, there is a recorded q uestion. Both the dialo...
【简答题】Part A Write a short composition according to the information given below. A research center is going to be established in a university. There is an argument about whether to establish an agricultural...
【简答题】在应变式力传感器中，弹性元件的作用是（）。
【单选题】Section B Directions: This section is to test your ability to understand long conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. Both ...
A.
A job related to business management.
B.
A job related to designing.
C.
A job related to marketing.
D.
A job related to advertising.
【单选题】关于电阻式压力传感器工作原理,错误的说法是______。
A.
该种传感器中弹簧管受压变形产生的位移与测量的压力成正比关系
B.
该种传感器中电桥的输出电压与测量的压力成比例关系
C.
该种传感器中存在弹性的敏感元件,存在滞后效应
D.
该种传感器适用于测量动态压力
【单选题】关于弹性滞后的理解,不正确的是( )
A.
弹性滞后与传感器的迟滞特性无关
B.
弹性敏感元件的滞后误差体现的是在加载与卸载过程中同一个作用力下不同的弹性变形的情况
C.
作为敏感元件的变形的不同将导致转换元件转换结果的不同，最终将体现在传感器的迟滞特性上
D.
引起弹性滞后的原因，主要是由于弹性敏感元件在工作时其材料分子间存在内摩擦
【简答题】在应变式力传感器中,弹性元件的作用是将( )。
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