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What are the styles of urging others to strictly implement it?

notice, letter and memorandum.

1. notice: it is a widely used style, which can be used by all units, organizations or individuals. notice can be used to convey policies, issue regulations, convey important information, etc., and can also be used to remind and urge others to perform a certain task.

2. Letter: a kind of formal communication style, which is mainly used for negotiation, asking or answering questions between units, organizations or individuals, and can also be used to remind and urge others to perform a certain task.

3. Memo is a relatively short style, which is mainly used to remind and urge others to perform a certain task, and can also be used to record and convey important information.