Evaluate the expression 
.
A. 5
B. 7
C. 9
D. 11
Answer: B
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Cooling towers generally use ____________________ type fans.
Fill in the blank(s) with the appropriate word(s).
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As a large city in the Corn Belt, _____ became the pork processing center of the U.S. in the 1820s.
Fill in the blank(s) with the appropriate word(s).
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_________________________ are drawings that show the location of electrical components.
Fill in the blank(s) with the appropriate word(s).
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