单项选择题

According to the passage, artist astronomers spent their lives _________.

A．exploring the planets
B．studying geometry
C．creating images of space
D．producing rockets for space travel
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单项选择题
According to the passage, what did the space probes do
A．Created abnormal conditions on the planets.
B．Confirmed the space artists' work.
C．Produced new occupations for artists.
D．Promoted interest in outer space.
单项选择题
The first paragraph is mainly about _________.
A．the characteristics of shy people
B．the cause of shyness
C．the questions in the minds of shy people
D．the effect of shyness on people
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