【判断题】【消耗次数：1】
气关特性的选择主要是要使得闭环控制系统是负反馈。()
①
正确
②
错误
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changing ?
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to change ?
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leading
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led
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lead
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listen--hearing
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I like nice and bright weather.
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You don’t like cold weather, do you?
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That was a favorable weather.
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getting financial support
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follow
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social
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takes on
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