The writer uses the film to _____（）
A. illustrate what good actors Tom Hanks and Leonardo DiCaprio are
B. explain the work of the FBI
C. show how to get information from computers
D. introduce the idea of identity theft
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In the 1960s,__（）
A. students were more interested in taking drugs than in protesting
B. California had become very rich because of its political radicalism
C. the governor of California felt that Berkeley University students were right to protest
D. there were students at Berkeley who believed that political change was necessary
International students today__（）
A. hope to change the world
B. aren’t very interested in changing the world
C. often decide to study in their own country
D. go to university because they know they will enjoy themselves there
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
Advantages of ground-based remote sensing detection:（）
A. low time resolution
B. high time resolution
C. low observation accuracy
D. high observation accuracy
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