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国籍， こくせき
1. nationality, citizenship
2. nationality (ship, airplane, etc.), registration, flag
国籍
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どこ， いずこ， いずく， いづこ， いどこ， 何処， 何所， 何處
1. where, what place
2. how much (long, far), what extent
哪里
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
