2. 外语
  3. Brushing and flossing can surely keep your teeth and gums healthy. Sensitive teeth may indicate a serious problem that may need

Brushing and flossing can surely keep your teeth and gums healthy. Sensitive teeth may indicate a serious problem that may need

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问题 Brushing and flossing can surely keep your teeth and gums healthy.
Sensitive teeth may indicate a serious problem that may need prompt care by a dentist.
选项 A、Y
B、N
C、NG
答案A
解析 定位到文章中标题Giving Plaque the Brush-Off下的末段：If you have teeth that are sensitive  to heat，cold，and pressure，you may want to try a special toothpaste for sensitive teeth．But you’ll still need to talk to your dentist about your sensitivity because it maybe indicative of a more serious problem，such as a cavity or nerve irritation。(如果你的牙齿对冷、热、刺激都过敏，你可能想试用抗过敏的特制牙膏。但是你仍然需要立刻去看牙医，因为牙齿敏感可能预示更严重的问题，比如蛀牙洞或神经过敏。)题干是对原文的同义转述和概括。
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大学英语六级

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