A、<span style="font-size:16px;font-family:楷体_GB2312">多谐振荡器</span>
B、<span style="font-size:16px;font-family:楷体_GB2312">单稳态触发器</span>
C、<span style="font-size:16px;font-family:楷体_GB2312">施密特触发器</span>
D、<span style="font-size:16px;font-family:楷体_GB2312">石英晶体多谐振荡器</span>