单项选择题

It can be inferred from the increase of fruit consumption that ______

A．people had to spend more on transportation and furniture
B．people were more wealth conscious
C．people were more money conscious
D．the price of fruit dropped dramatically

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单项选择题

The factors that arc in relation to exercises injuries

A．have been obtained from many good studies
B．have been confirmed by many data
C．cannot confirm the risk of equipment types
D．can be proved easily by the data through calculation

单项选择题

The passage is mainly about ______.

A．the high injury rates for those doing exercises
B．the ways to avoid exercise injuries
C．the evidences for the seriousness of exercise injuries
D．the studies about injury rates and causes for injuries