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A Tht 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?
A. Most of then have good habits.
B. Nearly 30%of then bathe three days a week .
C. All of then are fighting germs better than expected .
D. About one third of them brush their teeth only once a day

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