2. 外语
  3. Brushing and flossing can surely keep your teeth and gums healthy. Professional treatment from your dentist works better than o

Brushing and flossing can surely keep your teeth and gums healthy. Professional treatment from your dentist works better than o

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问题 Brushing and flossing can surely keep your teeth and gums healthy.
Professional treatment from your dentist works better than over-the-counter products in ______.
选项
答案whitening your teeth
解析 定位到文章标题Tooth-Whitening Products下的最后两句话：If you think your teeth aren’t white enough， though，talk to your dentist before you try any over-the-counter whitening products．Your dentist may be able to offer you professional treatment，which will be suited to your unique needs and will work better than over-the-counter products．(如果你认为自己的牙齿不够白，那么在试用任何一种药店柜台出售的美白产品之前先去和自己的牙科医生聊聊。你的牙科医生可能会给你一些专业治疗。这些专业治疗是针对你一个人的独特需求的，要比柜台出售的美白产品更有效。)由此可得答案。
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大学英语六级

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