A、<span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">单稳态电路</span></span></p><p><br/></p>
B、<span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">无稳态电路</span></span><span style=";font-family:宋体;font-size:14px"> </span></p><p><br/></p>
C、<span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">双稳态电路</span></span><span style=";font-family:宋体;font-size:14px"> </span></p><p><br/></p>
D、<p style="text-indent:28px"><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">三稳态电路</span></span></p><p><br/></p>
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