单项选择题
密集烤房热风回风口的规格为()。
A.1800mm*300mm
B.1800mm*400mm
C.1400mm*400mm
D.1400mm*300mm
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单项选择题
A.1800mm*300mm
B.1800mm*400mm
C.1400mm*400mm
D.1400mm*300mm
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