单选题（）are supplied by main switchboard directly.ASuez Canal searchlight, air compressor and air conditioning compressorBAir compressor, boiler blower and refrigeration plantCBoiler blower, Suez Canal searchlight and refrigeration plantDSuez canal searchlight, air compressor and boiler blower
单选题
（）are supplied by main switchboard directly.
A
Suez Canal searchlight, air compressor and air conditioning compressor
B
Air compressor, boiler blower and refrigeration plant
C
Boiler blower, Suez Canal searchlight and refrigeration plant
D
Suez canal searchlight, air compressor and boiler blower
参考解析
解析：
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