According to the working band of electromagnetic waves, remote sensing can be（）
A. visible light remote sensing
B. infrared remote sensing
C. microwave remote sensing
D. ground remote sensing
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Advantages of ground-based remote sensing detection:（）
A. low time resolution
B. high time resolution
C. low observation accuracy
D. high observation accuracy
Which one is not used in achieving indoor positioning（）
A. WiFi
B. GNSS
C. Bluetooth
D. Ultra wideband （UWB）
Which one is not included in the “So” of “SoLoMo”（）
A. Social Computing
B. Socially aware
C. SNS
D. Location- based service
Which one is not used with extracting knowledge from spatio-temporal data by LBS（）
A. big data
B. artificial intelligence
C. Photogrammetry
D. cloud computing
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