Robots have been around since the 3rd century BC. At that time, they were mainly invented as toys to amuse the king or emperor. Now, robots help life on Earth by... I. gathering information from areas that humans cannot easily study. II. performing repetitive jobs more quickly and accurately than humans. III. making it possible for humans to be completely unnecessary in factories and research facilities. A. II and III only B. I and II only C. I and III only D. I, II, and III
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Robots have been around since the 3rd century BC. At that time, they were mainly invented as toys to...
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