【单选题】关于医学伦理学研究对象的叙述,不正确的是
【判断题】Russian is one of the six official languages in United Nations.
【简答题】The six official languages of the UN are English, __________, __________, __________, __________ and __________.
【多选题】宋词在风格上清新与浓烈并存,其中,( )的词作以清新著称,属婉约派。
【多选题】What are the six official languages in the UN?