单项选择题
A．Man is more colour-conscious than the honey-bee. B．The honey-bee is blind to red. C．The honey-bee can see far more colours than man. D．Man is sensitive to the ultra-violet.
A．people of different generations may have the same view towards life, work and play B．people of the same generation share the same view towards life, work and play C．people of different generations may have different views towards life, work and play D．nuclear family members share the same view towards life, work and play
A．Some cultures favor the past time. B．Some cultures have the tendency to favor the present time. C．Some cultures tend to favor the future time. D．All of the above.