Which one is not a kind of mathematical features of the map（）
A. map projection
B. vegetation
C. contour line
D. scale
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Which one is not a classification of maps by region（）
A. world map
B. national map
C. area chart
D. virtual map
Which one is not a GIS development mode（）
A. Independent development
B. Host redevelopment
C. Open-source secondary development
D. Embedded development
Which concept is not about the Smart Earth（）
A. digital earth
B. internet of things
C. cloud computing
D. Mars exploration
Which one is not the requirements of constructing geospatial information engineering（）
A. The carrier is digital
B. The information is isolated
C. The decision-making is intelligent
D. The transmission is real-time
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