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Author Question: How to do this SAT math question? (Read 2391 times) |
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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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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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.