在设备状态监测和故障诊断中，______是设备异常或故障信息的重要

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问题单项选择题

在设备状态监测和故障诊断中，______是设备异常或故障信息的重要载体。

A．设备的信号检测
B．设备的状态矢量
C．设备的变化信息
D．设备的基本模型

答案

参考答案：B

补全对话，情景问答

补全对话。

A: Hello, Bill. I haven't seen you for a long time. How are you?

B: Fine. Thank you. __1__?

A: Pretty good. I was told that you would finish your high school study. __2__?

B: I am going to study computer in college. __3__ ?

A: My parents are hoping l will go to music school, but I'm not so sure.

B: I know you like playing the violin, don't you?

A: Yes, __4__. But I hate having to study music theory.

B: Why don't you ask your music teacher for advice?

A: __5__

单项选择题

下列关于注水泵说法正确的是（）。

A.注水泵设有暖泵阀

B.注水泵出口不设单向阀

C.运行时注水泵出口压力是恒定不变

D.注水泵出口设有单向阀