Listen to the audio file and answer the following questions:
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1. The article says that satellite images can be used
a). only for good purposes
b). for both good and bad purposes
c). to see nothing smaller than a truck
d). To locate submarines underwater
2. What country tried to purchase detailed images through a dummy company in Australia?
b). North Korea
3. Satellite images are gathered
a). only by governments
b). only by private companies
c). by both governments and private companies
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