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Which method of comparison and contrast does the author use in Para. 6 and Para.7?

（2.0分）
2.0 分

A、

one-side-at-a-time method

B、

point-by-point method

C、

Posing a question.

D、

Quoting a famous saying.

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出自：齐齐哈尔大学-大学英语

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