回複：請教各位

Please read the following instructions from the official tax document(IRS Publication 901) and judge yourself.


" An individual who is a resident of the People’s Republic of China and who is temporarily in the United States primarily to teach, lecture, or conduct research at a university or other accredited educational institution or scientific research institution is exempt from US income tax on income for the teaching, lecturing, or research for a total of not more than 3 years.

This exemption does not apply to income from research carried on mainly for the private benefit of any person rather than in the public interest."