相关考题
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单项选择题
关于有线电视系统部件安装符合下列要求的说法中错误的是()。
A.部件及附件的安装应牢固、安全并便于测试、检修和更换
B.可以安装在厨房、厕所、锅炉房等场所
C.室内安装系统输出口用户面板时,其下沿距离地面高度可能为0.3m
D.室内安装系统输出口用户面板时,其下沿距离地面高度可能为1.5m -
单项选择题
在有线电视系统前端设备安装中,固定的立柜、立架背面与侧面离墙面净距不应小于()。
A.0m
B.0.2m
C.0.5m
D.0.8m -
单项选择题
听力原文:W: What's the matter? I've mid you to arrive at 6:30, but now it's seven. Why don't you answer my phone?M: I'm sorry. I left my mobile phone in the office, so I cannot inform. you of my late arrival. Actually, I started one hour ago, but the traffic jam delayed me for 35 minutes.Q: When did the man start to meet the woman?(17)A.5:55.B.6:25.C.6:00.D.5:30.
A.
Q:
B.5:55.
B.6:25.
C.6:00.
D.5:30.
