From value system to artistic language, from modernity to nationality, Chinese oil painting requires continuous and deep study on multiple levels.

中国油画从价值观念到语言表现，从现代性到民族性的多个方面，不断的深化研究也显得尤为必要。

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The wrong response to this is political protectionism, with states forcing citizens to choose one nationality only, or hampering their right to multiple passports.

ECONOMIST: Citizenship

Under international law, countries including the United States that use race, color, ethnicity, religion or nationality as a proxy for criminal suspicion are in violation of international standards against racial discrimination and multiple treaties to which the U.S. is a party.

CNN: Why profiling doesn't work