If both the “high level” and “low level” alarms come on for the same address of a centralized control console, the most likely problem is a/an （）.<br>A:sensor failure<br>B:failed alarm<br>C:low level<br>D:extremely high level

If both the “high level” and “low level” alarms come on for the same address of a centralized control console, the most likely problem is a/an （）.
A:sensor failure
B:failed alarm
C:low level
D:extremely high level

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