电路如图所示, 所有二极管均为理想元件,则D1、D2、D3的工作状态为( )。A.D1导通,D2、D3截止 B. D1、D2截 止,D3导通C. D1、D2截 止,D3导通 D. D1、D2、D3均截止【图片】
A.
A
B.
B
C.
C
D.
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