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【简答题】
常用的辐射源分为哪些类型?简述典型光源的应用。
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举一反三
【简答题】（6分）分别完全燃烧1mol C 2 H 6 , , 1mol C 2 H 4 , 1mol C 2 H 2 ,需要氧气最多的是 ；生成水最少的是 ;生成 质量相等。
【简答题】控制系统如图所示: 阶跃响应为: 试利用系统辨识法确定系统数学模型。
【简答题】如图所示控制系统: 其阶跃响应曲线为: 试利用过程特性测试建模法确定系统数学模型。
【简答题】用适当的并列连词填空 1. He couldn't know the truth about me,_____ he wouldn't treat me like this. 2. The bell is ringing _____the lesson is over. 3. Although he was ill,_____he kept on working. 4. I can't ma...
【简答题】It was a quiet village in which there was a military( 军队的 ) camp. It was far from the towns and cities and there were some high mountains around. Of course it was a good place for training the new sol...
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