A.电压 B.电流 C.电磁力 D.永磁力
A.4 B.4.6 C.4.8 D.5
A.0.1 B.0.2 C.0.3 D.0.25
A.150 B.200 C.250 D.300
A.1 B.5 C.1.5 D.2
A.14.4V B.16.8V C.18.4V D.20V
A.0.01A B.0.03A C.0.04A D.0.05A
A.0.03 B.0.15 C.0.2 D.11
A.≤40 B.≤50 C.≤60 D.≤70
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