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Author Question: Nearly all large optical telescopes built today are ________. (Read 59 times) |
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The horizontal fraction bar was introduced by the Arabs.
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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The Land Ordinance of 1785 called for surveying and dividing the Western Territories into square mil
A strike by 800 women shoemakers in Lynn, Massachusetts, in 1860. In 1851 a Lynn shoemaker had adapt