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Author Question: Which ball is more elastic? A) a common rubber ball B) a steel ball C) both the ... (Read 98 times) |
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The horizontal fraction bar was introduced by the Arabs.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.