A-A+
As far as the writing technique is concerned
问题详情
As far as the writing technique is concerned, the author mainly resorts to
A．comparison.
B．cause-to-effect.
C．classification.
D．definition.
参考答案
正确答案：C
解析：就本文的写作技巧来看，作者使用了分类。作者开头总述了美国有三类种族群体，然后分别介绍了其特点。故应选C。
