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МатематикаВопрос:
B. Answer the following questions: 4. Who made experiments with the gas on himself?
Ответ:
Horace Wells
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- A. Write down if the following statements are True (T) or False (F): 1. Nobody knows who was the first to use anaesthesia for killing pain.
- A. Write down if the following statements are True (T) or False (F): 2. It was in America where "laughing-gas" was found by Joseph Priestley, a prominent chemist.
- A. Write down if the following statements are True (T) or False (F): 3. For a long time no one was seriously interested in "laughing-gas".
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