Boil your toothbrush for about a minute. This kills germs.__5__ If you have used the toothbrush for three months or so, throw it away and buy a new one.
A.Have a shower every day.
B.Wash your hands often.
C.Don't use your hands when coughing.
D.Don't go out often when you are coughing.
E.Besides, don't use the same toothbrush too long.
F.In this way, you won't be infected by these people.
G.So you'd better stay in the places with more fresh air.
答案:1~5 BCGFE
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