单项选择题
A.µA B.mV C.烛光 D.cd
A.0.3Mpa~0.5Mpa B.0.4Mpa~0.6Mpa C.0.5Mpa~0.7Mpa D.0.6Mpa~0.8Mpa
A.1万~1.4万 B.1.5万~2万 C.1.5mm~2.5mm;2mm~3mm D.2mm~3mm;4mm~5mm
A.电解液比重为1.00,单格电压低于1.0V B.电解液比重为1.1,单格电压为1.5V C.电解液比重为1.11,单格电压为1.75V D.电解液比重为1.15,单格电压为2.0V
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