单项选择题
A.0.38mm,0.76mmB.0.5mm,1.0mmC.0.43mm,0.48mmD.0.20mm,0.50mm
A.0℃ B.10℃ C.25℃ D.35℃
A.标定功率B.12h功率C.持续功率D.无功功率