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Brushing and flossing can surely keep your teeth and gums healthy. [br] Receding
Brushing and flossing can surely keep your teeth and gums healthy. [br] Receding
游客
2023-09-16
19
管理
问题
Brushing and flossing can surely keep your teeth and gums healthy. [br] Receding gums is often the result of hard tooth brushing.
选项
A、Y
B、N
C、NG
答案
A
解析
定位到文章标题Tips on Proper Brushing下第一条建议末句:Brushing too hard can cause receding gums,tooth sensitivity.and,over time,loose teeth.(刷牙时用力过猛会造成牙龈萎缩,牙齿过敏,而且久而久之会造成牙齿脱落。)由此可判断,牙龈萎缩常常是由于刷牙过猛造成的。题干与原文内容相符合。
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