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Author Question: A test of a filter using an oscilloscopeRefer to Figure 4. The block with the ? on it represents a (Read 114 times) |
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The longest a person has survived after a heart transplant is 24 years.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.