Surface drainage may be improved by ____

a. land grading
b. certain tillage practices
c. berms


A

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The basic parts of a stairway are risers, treads, and _____.

a. balustrades b. center-cut stringers c. stair framing d. handrails

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The welder's qualification is normally considered effective ____.

A. for six months B. for one year C. for five years D. indefinitely

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By the Edict of Milan, Constantine and Licinius proclaimed an edict of

a. persecution against Christians. b. proscription of all paganism. c. universal religious toleration. d. toleration of Christians only.

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Fill in the blanks with correct numbers for this DFT harmonic function of a real-valued signal with N = 8.

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