The light sources (lamps) can be placed in three categories: ____, fluorescent, and high-intensity discharge (HID).
A. LED
B. arc-generated
C. halogen
D. incandescent
Answer: D
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For the political views he expressed in his Seventh of March speech, Daniel Webster was viciously condemned by
A. northern Unionists. B. northern banking and commercial interests. C. abolitionists and Free Soilers. D. Henry Clay. E. John C. Calhoun.
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