https://travel.state.gov/content/visas/en/study-exchange/exchange/exchange-
visitor-skills-list.html
If the country of your nationality differs from the country of your last
legal permanent residence at the time you obtain your Exchange Visitor (J-1)
visa status, the Skills List from the country of your last permanent
residence at the time you obtain your J visa applies to you.
但是不太清楚香港算不算 country of legal permanent residence
