问题
单项选择题
对一级负荷中的特别重要负荷()。
A.必须要两路电源供电
B.除由两个电源供电外,尚应增设应急电源,并严禁将其他负荷接入应急供电系统
C.应由两个电源供电,当一个电源发生故障时,另一个电源应不致同时受到损坏
D.可采用一路电源供电,但必须采用应急发电机组作为第二电源
答案
参考答案:B
对一级负荷中的特别重要负荷()。
A.必须要两路电源供电
B.除由两个电源供电外,尚应增设应急电源,并严禁将其他负荷接入应急供电系统
C.应由两个电源供电,当一个电源发生故障时,另一个电源应不致同时受到损坏
D.可采用一路电源供电,但必须采用应急发电机组作为第二电源
参考答案:B
根据短文内容,用方框中所给词语的适当形式填空,使文章通顺、完整。(每词限用一次)
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