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【单选题】
关于LC串联谐振回路中的感性和容性,( )。
A.
当外加信号源频率大于谐振频率时,电压相位超前电流
B.
当外加信号源频率大于谐振频率时,电流相位超前电压
C.
当外加信号源频率小于谐振频率时,呈感性
D.
当外加信号源频率大于谐振频率时,呈容性
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