[单项选择]Questions 11 to 15 are based on the following passage:
Today, cigarette smoking is a common habit. About forty-three percent of the adult men and thirty-one percent of the adult women in the United States smoke cigarettes regu-larly. It is encouraging to see that millions of people have given up smoking.
It is a fact that men as a group smoke more than women. Among both men and women the age group with the highest portion of smokers is 24-44.
Income, education, and occupation all play a part in determining a person’s smoking habit. City people smoke more than people living on farms. Well-educated men with high in-comes are less likely to smoke cigarettes than men with fewer years of schooling and lower incomes. On the other hand, he is likely to smoke packs of cigarettes per day.
This situation is somewhat different for women. (80) There are slightly more smokers among women with higher family income and higher education than among the lower in-com
A. B．There are more smoking women than smoking men in US