单项选择题
A.300MA-3000MA B.30MA-300MA C.0.3MA-3000MA D.0.3MA-300MA
A.0.1MA/6 B.0.1A/6 C.0.1MA/0.6 D.0.1A/0.6
A.0.1MV B.0.01MV C.0.2MV D.0.02MV
A.0-5V B.0-4.8V C.0-5.2V D.0-4.5V
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