2. Batch Update
3. Data Paging
4. Connection Details
5. DataSet.RemoringFormat Property
6. DataTable's Load and Save Methods
7. New Data Controls
8. DbProvidersFactories Class
9. Customized Data Provider
10. DataReader's New Execute Methods（按原文的意思我想应该是Command而不是DataReader）
http://www.c-sharpcorner.com/Code/2004/June/AdoNet2.0Features.asp