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【单选题】
电路如图所示 , 已知L =0.2 H, u S =5sin50t+10sin100t V,则 i(t)= ( )A.
0.5sin(50t-90°) + 0.5sin(100t-90°)Ａ
B.
0.5sin(50t-90°) + sin(100t-90°)Ａ
C.
0.5sin50t + 0.5sin100tＡ
D.
0.5sin50t + sin100tＡ
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