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【单选题】SinceApril, a new flu namedA-H1 Nl(originally called swine flu)has affected over 100,000 people in more than 40 countries. Symptoms of swine flu are similar to those of regular seasonal influenz
A、People with swine flu often get a fever, headache, cough, sore throat, body aches, vomiting, chills and fatigue. Study has showed, that swine flu is a virus that usually affects pigs but appears to have acquired the ability to pass from person to person, though it’ s unclear how easily it can be transmitted this way.
Usually, the best way to protect yourself contracting it or other infectious diseases is with a dose of common sense: Wash your hands frequently with soap and warm water, cover your coughs and sneezes and stay home from work or school if you feel ill. These guidelines may seem basic, but they’ re effective in preventing the spread of infections. RichardBesser, acting director of the U. S.Centers forDiseaseControl and PreventionCDC、, said, "Control of an outbreak of infectious disease is a shared responsibility. It’ s important that individuals realize they have a key role to play in reducing their own likelihood of getting infecte
D、"
If you become sick, stay home for the period of infection, which is typically seven days, although children may be contagious for longer. Once on the mend, don’ t return to work or school until at least a day after symptoms have disappeared,Besser sai
D、"Wearing a face mask when out in public isn’t warranted(必要)in most cases, "he sai
D、"I know some people feel more comfortable having a mask, and there are certain circumstances where that may be of value, but 1 would rather people really focus on hand-washing, as well as covering coughs and sneezes. \
What does RichardBesser think of wearing a face mask

A、It can protect people from getting infected in most cases
B、It can make people feel comfortable and is affordable.

C、It isn’t as effective as hand-washing and covering your coughs or sneezes

D、It is more effective than hand-washing and covering coughs and sneezes.
网考网参考答案：C
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