【单选题】【消耗次数：1】
所谓波形图表示方法，是用输入端在不同逻辑信号作用下所对应的输出端信号波形图表示门电路的逻辑关系的方法。
①
对
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错
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【判断题】
下图表示的是双极性控制模式时单相桥式逆变电路波形图 。<img src="20190823/1566522674765062.jpg" title="1566522674765062.jpg" alt="1566522655(1).jpg"/>
①
正确
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错误
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We wish that you hadnt have such a lot of work, because we know you would have enjoyed the party.
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