1. A clear objective, that is, the demand is clear that offer for, without the recipient received presentation must ask, want to consider what
2.The presentation format, that is, a reasonable compact rule. Sort, not easy to understand language, using tables, charts, diagrams, help consider the information conveniently
3.The contents, the reliable, honest, accurate, complete completely meets the requirements with current information up-to-date. And have enough content to determine
4.Have a good proposal. The offers a reasonable reason there are considerations to compare alternative clearly suggest clear guidelines.
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