【判断题】【消耗次数：1】
电动机异地控制电路中，将多个起动按钮并联起来，多个停止按钮串联起来，并且各取一对起动按钮和一只停止按钮分别安装在不同的地方，就可以实现异地控制。
①
正确
②
错误
参考答案：
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【单选题】
带切口圆柱三视图正确的是<img src="https://file.icve.com.cn/ssykt/293/762/494BE9F27082F46369578F5E39161411.png"/>
①
<img src="https://file.icve.com.cn/ssykt/92/317/1734F413C584333E8D80BAE982C46850.png">
②
<img src="https://file.icve.com.cn/ssykt/943/633/EBE9E622E94B514C96E5A7F7C92EB4EB.png">
③
<img src="https://file.icve.com.cn/ssykt/312/811/4E2CAD5B3A1BD8950DDC8F573CA1A520.png">
④
<img src="https://file.icve.com.cn/ssykt/928/493/E807B7041A6F8E141A463904A473D616.png">
【单选题】
尺寸界限用（）绘制。
①
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粗实线
②
细
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实线
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点划线
④
Normal
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虚线