【判断题】【消耗次数：1】
电气原理图中主电路用粗实线，控制电路和辅助的信号指示及保护电路用细实线。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
化工制图中图线宽度分粗、中粗、细三种，若粗实线的宽度为d，则细实线的宽度为( )。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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2d
②
Normal
0
7.8 磅
0
2
false
false
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ZH-CN
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mso-bidi-font-size:11.0pt;
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d
③
Normal
0
7.8 磅
0
2
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ZH-CN
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1/2d
④
Normal
0
7.8 磅
0
2
false
false
false
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ZH-CN
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1/4d
随机题目
【单选题】
下面正确的一个是（）
①
语言是个人的，言语是社会的
②
言语是个人的，语言是社会的
③
语言是个人的，又是社会的；而言语是社会的
④
言语是个人的，又是社会的；而语言是社会的