【单选题】
在污水排放系统中，共有几个放泄桅杆，几个具有电加热功能？___
A. 2；1
B. 2；2
C. 1；1
D.
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答案
B
解析
暂无解析
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在ECAME/W的右备忘区显示ACARSMSG表示：___
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