单选题 One reason people sometimes rub their noses when they lie is that______

【正确答案】 B
【答案解析】本题考查的也是考生对细节的把握,答案对应于第三段最后一句:The tip of the nose is very sensitive to such changes and the increased pressures make it itch.鼻尖对这样的变化非常敏感,血压的增加使得它发痒,即与B选项吻合。