单项选择题
客室空调紧急逆变器在紧急运行时将()电源逆变为()电源
A.110Vdc/400Vdc
B.400Vac/110Vdc
C.110Vdc/400Vac
D.400Vdc/110Vdc
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单项选择题
A.110Vdc/400Vdc
B.400Vac/110Vdc
C.110Vdc/400Vac
D.400Vdc/110Vdc
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