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
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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
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A.
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B.5:55.
B．6:25.
C．6:00.
D．5:30. -
单项选择题
听力原文：W: I'm worried about you. You look so pale. Do you have a headache? You need to take some medicine.M: A good rest will be more helpful. I was really exhausted at the wedding party last night. I'm sorry that we have to stay in the hotel, because this is the fast day of the honeymoon.Q: What's the relationship between the man and the woman?(18)A．Doctor and patient.B．Friends.C．Husband and wife.D．Boyfriend and girlfriend.
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B．Friends.
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F.
