The control unit for an artificial heart was invented by Otis Frank Boykin.
Answer: D. The value of stocks can rise and fall unpredictably
Explanation:kwdncbjhgdw cbjsjshsncbfdncsxm
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Answer: i don't know sorry
Explanation:
<span>Cuneiform script is one of the earliest systems of writing, distinguished by its wedge-shaped marks on clay tablets, made by means of a blunt reed for a stylus.
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