单选题辅锅炉点火失败后，再次点火时，预扫风时间应不少于（）分钟A0.5B1C3D5
单选题
辅锅炉点火失败后，再次点火时，预扫风时间应不少于（）分钟
A
0.5
B
1
C
3
D
5
参考解析
解析：
暂无解析
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