IT can be inferred from the passage that Europa and Antarctica have in common which of the following（）
A. Both appear to have a surface with many craters
Both may have water beneath a thin,hard surface
C. Both have an ice can that is melting rapidly
D. Both have areas encased by a rocky exterior
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The author mentions the trail pheromone of the leafcutter ant in line 11 to point out（）
A. how little pheromone is needed to mark a trail
B. the different types of pheromones ants can produce
C. a type of ant that is common in many parts of the world
D. that certain ants can produce up to one milligram of pheromone
除某些规定的行业外，建设单位一般应当在项目( )阶段报批建设项目环境影响报告书、环境影响报告表或者环境影响登记表。
A. 项目建议书
B. 初步可行性研究
C. 可行性研究
D. 初步设计
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
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
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