试题与答案

正在使用的热电偶温度变送器,如果某一部分出现问题,那么可以使用热电阻温度变送器的()

题型:单项选择题

题目:

正在使用的热电偶温度变送器,如果某一部分出现问题,那么可以使用热电阻温度变送器的()部分进行替代。

A、输入

B、放大

C、反馈

D、比较

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:阅读理解

阅读理解。

     Lisa and Mike live on King Street and take the number 25 bus to school every day. The buses in

their city are special for three important reasons.

     First, the buses are electrical. Electrical buses don't make the air dirty. They are  cleaner than other

buses.

     Second, you can take your bicycle on the bus, too. You can take the bus to school. And then ride

your bike to another place. Bicycles also help people keep the city clean.

     Third, buses in Lisa and Mike's city are really good because the bus drivers are very friendly. They

often help people get on and off the bus.

1. Lisa and Mike live _____.

A. on King Street

B. on Green Street  

C. at the station

2. They take the number _____ bus to school every day.   

A. 24  

B. 25  

C. 26

3. Electrical buses don't make the air _____. 

A. dirty      

B. clean    

C. good

4. _____ also help people keep the city clean.

A. Bicycles  

B. Buses    

C. Cars

5._____ help people get on and off the bus.

A. The bus drivers      

B. The car drivers        

C. The police

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