名词解释：copyright
A copyright is title to certain pecuniary rights and, in most countries, certain moral rights for a specified period of time.
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According to Maslow,self-actualization need excludes _______
We have received your letter of September 12, ______ we are glad to know that you are interested in our electric heaters.
We are making you our quotation for shoes ____.
This offer is ____ your reply reaching us before May 5th.
Which of the following statement is NOT true?
