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【多选题】
下列关于高频小信号谐振放大器的说法正确的是A.
输入导纳与负载导纳有关,反映了晶体管有内部反馈
B.
输出导纳与信号源导纳有关,也反映了晶体管存在内部反馈
C.
晶体管的正向传输导纳越大,放大器的增益越大
D.
增益有负号是因为输出与输入反相
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【简答题】They may be just passing your office, computer bag slung (悬挂) over one shoulder. Or they may be sitting in a car outside it, causally tapping away at a laptop. They look like innocent passers-by. In f...
【简答题】They may be just passing your office, computer bag slung (悬挂) over one shoulder. Or they may be sitting in a car outside it, causally tapping away at a laptop. They look like innocent passers-by. In f...