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This paper has been withdrawn by the author, due to the insecurity against attacks received in quant-ph/0605027v5.

The paper is withdrawn by the authors and replaced be an improved and extended version arxiv: 0812.2968

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This paper has been withdrawn by the authors, due a crucial mistake in Lemma 2

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This paper has been withdrawn by the authors, because the authors have second thought that the new ideas in this paper are better to be contained in another paper.

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This paper has been withdrawn by the author due to journal requirement.

This paper has been withdrawn by the authors due to the paper is far from complishment.

This paper has been withdrawn due to a crucial theoretical and experimental error.

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This paper has been withdrawn by the author due to a crucial error in the formulation.

Withdrawn by arXiv administration because authors have forged affiliations and acknowledgements, and have not adequately responded to charges [hep-th/9912039] of unattributed use of verbatim material.

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This paper has been withdrawn, as it should not have been a new submission. Please instead see the latest version of arXiv:0904.0436.

This paper has been withdrawn since we combine this paper with math.AC/0503685. All contents of the paper have been moved to math.AC/0503685.