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Author Question: Gates-Glidden drills are used ____________. a. by hand b. in the high-speed handpiece c. in the ... (Read 55 times) |
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
Asthma cases in Americans are about 75% higher today than they were in 1980.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.