C# XML How to Read all the nodes

I am new to C#. I am using it in HP ServiceTest tool.
I am trying to use selectnodes method. I dont have the xpath information.

How do I read all the nodes of this XML ?

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111804661725
99
2011-04-25
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Need to Fetch Term Start Date
Need to Fetch Term End Date
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107882939
Need to Fetch Most Recent Card Number
1
Need to Fetch Member Type Description
Need to Fetch Member Name
50.00

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107883000
Need to Fetch Most Recent Card Number
2
Need to Fetch Member Type Description
Need to Fetch Member Name
.00