【判断题】【消耗次数：1】
为了消除乙类互补功率放大器输出波形的交越失真，而采用甲类互补功率放大器。
①
正确
②
错误
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简易型
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差模输入电阻趋于无穷大，开环输出电阻等于零
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差模输入电阻等于零，开环输出电阻等于零
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差模输入电阻趋于无穷大，开环输出电阻趋于无穷大
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tried;to be left;
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had tried to;leaving
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tried to;left
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had tried;have left
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must;can;must;his
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may;can;must;him
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can;must;can;him
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to be stuck
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stuck
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sticking
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stick
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didn’t say
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couldn’t speak to
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said
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didn’t tell
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Seen;painted
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Seeing;painted
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Being seen;being painted
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Seeing;being painted
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as difficult as ;expensive
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as more difficult as ; more expensive
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as difficult as ; more expensive
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where
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what
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how
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which