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Author Question: A pointing device, such as a mouse or touchpad, is used to control the pointer. (Read 115 times) |
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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
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There are approximately 3 million unintended pregnancies in the United States each year.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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If you could remove all of your skin, it would weigh up to 5 pounds.