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Moscow! Wow! I almost went to Moscow State University. But something come up and did not go.
If you can find a Hong Kong company sponsor you as a skilled worker, you will be granted a working visa. Once you stay Hong Kong legally for 7 years, you can apply for permanent residency and get a Chinese Hong Kong passport. You can go to many countries without visa with this passport.
Mainland China has finalised its green card program for people to migrant to China. Since it is fairly new, you will expect delays and confusions. But you can always apply a tourist/student visa and once any company can sponsor you, you may work and live in China.