I am a Chinese和I am Chinese哪个对?

I am a Chinese和I am Chinese哪个对? I am Chinese!和I am a Chinese!哪个对?意思是什么? I am Chinese.I am a Chinese.哪个句子正确 i am chinese 和 i am a chinese 哪个更常用? I am a Chinese. i am proud i am a chinese I am a Chinese对Chinese划线提问用什么 I am a chinese还是I am chinese正确 是i am a chinese 还是 i am chinese I am a Chinese还是I am Chinese I am a Chinese 和 I am Chinese 有什么区别 i am not chinese