单项选择题
A.800kW B.1100kW C.1280kW D.1360kW
A.绝缘线 B.尼龙护套线 C.镀锡铜编织线 D.铜母排
A.38V B.48V C.58V D.68V
A.960r／min B.983r／min C.1299r／min D.1499r／min
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