A、Dressing warmly can help avoid catching many diseases. B、Washing your hands can reduce your chance of catching a cold. C、The s

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问题  
Question No. 6 It’s smart to dress warmly when it’s cold outside. But colds are caused by viruses, and not cold weather. Washing your hands is a good way to avoid catching many viruses.

选项 A、Dressing warmly can help avoid catching many diseases.
B、Washing your hands can reduce your chance of catching a cold.
C、The smartest way to avoid catching a cold is to dress warmly.
D、Both viruses and cold weather are causes for catching colds.

答案B

解析
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