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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
There are approximately 3 million unintended pregnancies in the United States each year.
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