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

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

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