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Which of the following microscope types would be least useful in viewing unstained living cells?
U.S. Oil Imports
The procurement of crude oil and petroleum products by the United States from other countries.
CD-Rom Drives
Optical disc drives used in computers for reading data stored on CD-ROMs, a form of storage media commonly used for software and media distribution.
Tariffs
Taxes imposed by a government on goods and services imported from other countries, often used to protect domestic industries.
United States
A country located in North America, known for its large economy and diverse population.
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