【单选题】【消耗次数：1】
mso-bidi-font-family:宋体;mso-font-kerning:0pt;mso-ansi-language:EN-US;
mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">相交剖视图中的箭头方向表示
①
应旋转后投影
②
不画其投影
③
不旋转直接投影
④
旋转后用虚线表示其投影
参考答案：
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一个剖切平面
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两个相交的剖切平面
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两个剖切平面
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几个平行的剖切平面
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③
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HCl——NaCl
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NaOH——Na2SO4
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NH3水
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HCl
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H2O
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Na2SO4
【单选题】
mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
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必要的尺寸标注
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必要文字注解
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NaAc
②
NH4Cl
③
KNO3
④
H2S
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mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
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AR-SA">下列描述不正确的是
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②
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③
装配图中相同结构可采用简化画法
④
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mso-bidi-font-family:Times New Romanmso-bidi-theme-font:minor-bidi;
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一个基本视图
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三个基本视图
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四个基本视图
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ZH-CN;mso-bidi-language:AR-SA;mso-bidi-font-weight:bold">画组合体视图应先进行
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线型分析
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视图选择
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形体分析
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