The subsequent problems deal with the circuit below
What is a simplified Boolean expression for R?
A. 
B. 0
C. 1
D. A
Answer: D
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A ____ is a bevel on the edge of a board that extends only partway through the thickness of the stock.
a.wedge b.notch c.chamfer d.cleft
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____ is the earliest ancestor of the present-day horse.
A. Mesohippus B. Eohippus C. Pliohippus D. Merychippus
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The accompanying figure shows the addition of a(n) ____________________ button to the circuit.
Fill in the blank(s) with the appropriate word(s).
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Name two conditions for positive feedback
A) 180 degree phase shift and gain slightly less than one B) phase shift zero and gain slightly less than one C) 180 degree phase shift and gain slightly greater than one D) phase shift equals zero degrees and gain slightly more than one
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