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E2m，作為本作品的著作權人，特聲明將本作品發表至公有領域。
在部分司法管轄區，前述聲明可能全部或部分違反法律規定，或著作權人無法放棄全部或部分著作權；有鑑於此，本作品著作權人聲明：
本作品著作權人，特此無條件授予任何人以任何目的使用本作品的權利，除非該等許可是法律所必需的，或該等使用是法律所禁止的。

根據《中華人民共和國著作權法》，著作人身權無法被放棄；若需要更嚴謹的公有領域聲明，建議使用《CC0 1.0》協議。

This work is in the public domain in Brazil for one of the following reasons:

• It is a work published or commissioned by a Brazilian government (federal, state, or municipal) prior to 1983. (Law 3071/1916, art. 662; Law 5988/1973, art. 46; Law 9610/1998, art. 115)
• It is the text of a treaty, convention, law, decree, regulation, judicial decision, or other official enactment. (Law 9610/1998, art. 8)
• It is a work whose authors' rights belong to the Brazilian government (federal, state, or municipal), for which the economic rights shall be protected for a period of 70 years from the first of January of the year following that of their disclosure or that of the author's demise, whichever is later. ([1])