【题目】Male nurses are difficult to hire as many men reject this______ out of the long-existing discrimination.
A.concept
B.responsibility
C.identity
D.personality

【答案】C
【解析】考查名词辨析 A. concept概念；B.responsibility责任；C. identity 身份；D. personality 个性。句意：男护士很难雇佣到因为很多男士在长期的歧视中拒绝这种身份，故选C项。