2. 外语
  3. A、They are highly sensitive to cold. B、They are vitally important to our life. C、They are a living part of our body. D、They are

A、They are highly sensitive to cold. B、They are vitally important to our life. C、They are a living part of our body. D、They are

admin2019-03-12  88
问题  
Take care of your teeth and your teeth will take care of you. Your teeth are a living part of your body. They have nerves and blood vessels. Diseased teeth can cause pain, die and fall out. Plaque is the main enemy of healthy teeth. Everyone has plaqu
选项 A、They are highly sensitive to cold.
B、They are vitally important to our life.
C、They are a living part of our body.
D、They are a chief source of our pain.
答案C
解析 短文开头即提到，牙齿是我们身体活生生的一部分，故答案为C。
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大学英语四级

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