A.<span>investigating a subject in order to discover or revise facts, theories, and applications
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Answer:Using a plain and simple font for the text
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In conclusion, although animals and humans can have some shared social and cognitive skills, language always requires more cognitive skills and learning a language is uniquely corresponds to human beings. Besides, animals cannot learn a human language, because animals cannot go futher than imitating and memorizing their owner’s words.
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The man discovered the nucleus of the cell,however,it soon turned and remained dormant.
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