独立安装的避雷针与有线电视系统天线的水平距离应大于( )。A.1m; B.3m; C.5m; D.7m。

作者: tihaiku 人气: - 评论: 0
问题 独立安装的避雷针与有线电视系统天线的水平距离应大于( )。
选项 A.1m; B.3m; C.5m; D.7m。
答案 B
解析

相关内容:避雷针,有线电视,系统,天线,水平,距离

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