单项选择题

Wearing a seat belt in a vehicle ______.

A．reduces road accidents to more than half
B．saves lives while driving at a speed up to 30 miles per hour
C．reduces the death rate in traffic accidents
D．saves more. than 15 000 lives each year

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热门试题

单项选择题

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

A．30000.
B．60000.
C．Approximately 30 000.
D．Above 30 000.

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 are good at climbing upwards