考博考试

【单选题】Which of the following is NOT mentioned as a possible cause of lung diseases
A．The burning of coal
B．Long-term exposure to smog
C．Exposure to nitrogen dioxide
D．Attending school camps
网考网参考答案：D
网考网解析：
Attending school camps。该题要选择不是lung disease的原因的选项，另外三项在原文中作者都用确凿的口吻说明是lung disease的原因，比如第一段结尾处“A series of these killer fogs eventually led to the British Passing the Clean Air Act which restricted the burning of coal．”，其他 B、C两项在原文中也有涉及。而D项，Groups of children attending school camps show falls in lung function even at quite low concentrations of ozone．这里有助于分析文章的信息来自even at quite low concentrations of ozone，而非Groups of children attending school camps，换言之，对于文章的理解而言，Groups of children attending school camps并无实际作用，只会干扰读者的分析思路。 查看试题解析出处>>