问题
单项选择题
在燃气管道安装工程中，不包含在安装工程内容中的项目有（）。
A．管道除锈、刷油
B．管道防腐
C．管道绝热层安装
D．标志牌装设
答案
参考答案：C
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在燃气管道安装工程中，不包含在安装工程内容中的项目有（）。
A．管道除锈、刷油
B．管道防腐
C．管道绝热层安装
D．标志牌装设
参考答案：C
| 从方框中选择适当的词，并用其正确形式填空，其中有三项为多余选项。 | |
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