考研英语二(27)

Through experiments and observation, social scientists like Dr. Berning have learned that there is power in tying certain behaviors to habitual cues through relentless advertising. As this new science of habit has emerged, controversies have erupted when the tactics have been used to sell questionable beauty creams or unhealthy foods.

31.According to Dr.Curtis,habits like hand washing with soap________.

[A] should be further cultivated

[B] should be changed gradually

[C] are deepiy rooted in history

[D] are basically private concerns

32.Bottled water,chewing gun and skin moisturizers are mentioned in Paragraph 5 so as to____

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