题组4　时文报道
专题一　阅读了解　第三节　题组训练
A(·甘肃甘谷二中一模)The Healthy Habits Survey(调查) shows that only about one third of American seniors have correct habits.Here are some findings and expert advice.  
1.How many times did you brush your teeth yesterday?·Finding：A full 33% of seniors brush their teeth only once a day.·Step：Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush.Brush gently for 2 minutes at least twice a day.
2.How many times did you wash your hands or bat ...