单项选择题

From the whole article it can be concluded that human beings __________.

A．feel like having more space
B．remain much interested in space all the time
C．are quite imaginative
D．are fond of distant traveling
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单项选择题
It can be inferred from the first paragraph that long time ago many people did not know the sky is __________.
A．a circle
B．space
C．a star
D．a planet
单项选择题
Scientists can see farther out into space with the help of __________.
A．the light from space
B．the stars in space
C．some new and larger telescopes
D．the clear background
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