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【多选题】
下列关于PTN设备伪线配置的说明正确的是：（）A.
伪线的本地标签要与对端远端标签可以不一致，因为伪线可以通过伪线ID进行识别
B.
PTN设备升级至1731+agent版本后，控制字默认为支持，序列号默认不支持，当配置E1和ATM业务时，一般会将这两个字段选中；如果配置以太网业务，则这两个字段可以不选
C.
绑定类型，伪线绑定隧道后并不立即下发设备，只有配置了业务后下发设备
D.
网管下发删除伪线命令，同时会关联删除设备的伪线oam。
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反馈参考答案：
举一反三
【简答题】If you had taken my advice, you _______much better now. (feel)
【简答题】If you had taken my advice, ______ (就不会犯这样严重的错误).
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be
【简答题】If you had been in my classes in the early McKee days , you would have seen a skinny young man in his late twenties with messy black hair , eyes that looked with a sign of infection , bad teeth and th...
【简答题】You would be much better now if you had taken my advice.
【单选题】在总体均值和总体比例的区间估计中,估计误差
A.
由置信水平确定
B.
由统计量的抽样标准差确定
C.
由置信水平和统计量（或估计量）的抽样标准差确定
D.
样本容量确定
【简答题】You ________ (be) much better now if you had taken my advice.
相关题目：
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be
参考解析：
知识点：
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