单项选择题

在有火灾发生的情况下，火灾自动报警系统的报警控制器面板上以光形式报警的是
A、故障总灯
B、火警总灯
C、主电源指示灯
D、备电源指示灯

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单项选择题

1. Which of the following is NOT true according to the passage?
A、You can always get help from the specialists.
B、It is common sense that is the most important when choosing a dog.
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