题目内容
集成运放工作在开环或引入正反馈，则工作在线性区。
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1. If you are bored with doing the same thing every day, then you are stuck in a rut.
2. Many people think about changing their lives, but only a few of them take action.
3. Half of the holiday makers in the UK think about changing their jobs during the holidays.
从 80386开始，CPU有三种工作方式：______模式，______模式和______模式
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