单项选择题

We can realize how deeply a finger is put into water at body temperature （）

A．from the sense of direct touch
B．through the difference in temperature
C．through skin contact
D．from the even distribution of pressure

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单项选择题

Which of the following is TRUE（）

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.

单项选择题

We can infer from the passage that （）

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