Q13:

It is true of both men and women that those who marry as young

adults live longer than those who never marry. This does not show

that marriage causes people to live longer, since, as compared with

other people of the same age, young adults who are about to get

married have fewer of the unhealthy habits that can cause a person

to have a shorter life, most notably smoking and immoderate

drinking of alcohol.

Which of the following, if true, most strengthens the argument

above?

Marriage tends to cause people to engage less regularly in sports

that involve risk of bodily harm.
A married person who has an unhealthy habit is more likely to give

up that habit than a person with the same habit who is unmarried.
A person who smokes is much more likely than a nonsmoker to marry a

person who smokes at the time of marriage, and the same is true for

people who drink alcohol immoderately.
Among people who marry as young adults, most of those who give up

an unhealthy habit after marriage do not resume the habit later in

life.
Among people who as young adults neither drink alcohol immoderately

nor smoke, those who never marry live as long as those who marry.
这一题我选E,

参考答案是D 如果是D的话，B有什么不可。

我以为，作者想要说明的是并非婚姻本身使人长寿，而是婚姻中的人较少有

坏习惯，主要是无不良习惯让人长寿，如果无不良习惯，不结婚也能长寿。

请大家来讨论一下。