A、<span style="font-size:16px;font-family:'Times New Roman','serif'">12mA </span>
B、<span style="font-size:16px;font-family:'Times New Roman','serif'">8 mA </span>
C、<span style="font-size:16px;font-family:'Times New Roman','serif'">15 mA</span>
D、<span style="font-size:16px;font-family:'Times New Roman','serif'">10 mA</span>
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