单项选择题

Why can businessmen make money in the emerging elder market

A．Retirees are more generous in spending money.
B．They can employ more gerontologists.
C．The elderly possess an enormous purchasing power.
D．There are more elderly people working than befor

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单项选择题

According to the passage parents and coaches should______.

A．help children to win every game
B．pay more attention to letting children enjoy sports
C．enable children to understand the positive aspect of sports
D．train children to cope with stress

单项选择题

The primary purpose of obedience training is to______.

A．teach the dog to perform clever tricks
B．make the dog aware to its owner's authority
C．provide the dog with outlets for its wild behavior
D．enable the dog to regain its normal behavior