It can be inferred from the passage that astronomy textbooks prior to 1979（）
A. provided many contradictory statistics about Europa
B. considered Europa the most important of Jupiter's moons
C. did not emphasize Europa because little information of interest was available
D. did nor mention Europa because it had not yet been discovered
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According to paragraph 3, artists who work on public art projects are doing all of the following EXCEPT（）
A. creating artworks that are unusual in size
B. raising funds to sponsor various public projects
C. exposing a large number of people to works of art
D. using new materials that are long—lasting
某项目的净现金流量如下表所示，该项目投资回收期为( )年。
A. 年份
B. 1
C. 2
D. 3
E. 4
F. 5
G. 6
H. 净现金流量(万元)
I. -100
J. -200
K. 100
L. 250
M. 200
N. 200
According to the passage, which of the following is true about all early domesticated plants（）
A. They were varieties of weed
B. They were moved from disturbed area
C. They succeeded in areas with many tree
D. They failed to grow in trampled or damaged area
According to the passage, new settings for public art are appearing as a result of（）
A. communities that are building more art museums
B. artists who are moving to urban areas
C. urban development and renewal
D. an increase in the number of artists in the United State
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