Hong Kong Macau cultural exchange was a trip that tested which law who's purpose was to fulfil Article 23 of the Macau Basic Law?
Hong Kong Macau cultural exchange: Hong Kong Macau cultural exchange was a trip that took place on the Sunday morning of March 15, 2009. Macau national security law:  Taken into effect on 3 March 2009, the purpose of the law is to fulfil Article 23 of the Macau Basic Law, the constitutional document of the Macau Special Administration Region.
i don't know