More than 30,000 drivers and passengers who seat in the front of the vehicles are killed or seriously injured each year. At a speed of only 30 miles per hour it is the same as falling from a third-floor building. Wearing a seat belt saves lives: it reduces your chance of death or serious injury by more than half.
　　Therefore drivers or front seat passengers over 14 in most vehicles must wear a seat belt. If you do not, you will be fined up to ￡ 50.It will not be up to the drivers to make sure you wear your belt. But it will be the driver’s responsibility to make sure that children under 14 do not ride in the front unless they are wearing a seat belt of some kind.
　　However, when you’re reversing your car, you do not have to wear a seat belt; or you are making a local delivery or collection using a special vehicle; r if you have a valid medical certificate which excuses you from wearing it. Make sure these circumstances apply to you before you decide not to wear your seat belt. Remember that you may be taken to court for not doing so, and you may be fined if you cannot prove that you have been excused from wearing it

How many people in front of the vehicles are killed or seriously injured every year()

单项选择题The best title for above article is().

A．"why men lack capacity for exercise over the years"
B．"how men's bones are arranged differently from women".
C．"studies on differences and similarities between men and women".
D．"men and women: some differences".

单项选择题That boys suffer more from air pollution can possibly be justified by the fact that().

A．the male have larger bones than the female.
B．women can manufacture blood more efficiently than men.
C．men usually breathe more deeply than women.
D．women breathe as often as men.

单项选择题It can be concluded from the passage that().

A．men suffer more from sun's radiation than women do.
B．men will be more exhausting than women after long trip.
C．the higher proportion of fat in women's body makes them easier to lose weight.
D．an aged man can still exercise his body as he is young.

单项选择题The different ways men and women move their body indicate that().

A．bone structures in men and women are arranged differently.
B．women's bones are more ready to movement.
C．men always move their bodies with waste motions.
D．women is good at climbing upwards.

单项选择题Which of the following statements is NOT true according to the passage()

A．More oxygen needs to be prepared when a man is having surgery.
B．Man's courage has nothing to do with male's body structure.
C．A woman usually stays cooler in summer and warmer in winter.
D．It is easier for a man to lose his weight.