问题
单项选择题
The development of laryngeal cancer is most clearly linked to which of the following factors()
A. High-fat, low-fiber diet.
B. Alcohol and tobacco use.
C. Low socioeconomic status.
D. Overuse of artificial sweeteners.
答案
参考答案：B
解析：
Predisposing factors for laryngeal cancer include chronic irritants such as alcohol, tobacco, and exposure to noxious fumes. About 75% of people who develop laryngeal cancer are smokers. The combination of smoking and heavy alcohol intake is even more strongly implicated as a causative agent in the laryngeal cancer.