Since glass is basically inert, what effects of certain environments are not a problem with optical communications?
A. Shrinkage
B. Corrosion
C. Warping
D. Expansion
B
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Bubbles in the sight glass always indicate refrigerant shortage.
Answer the following statement true (T) or false (F)
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The texture of the soil refers to the ____ of the individual soil particles
a. Shape c. Carbon content b. Absorption level d. Size
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Female ferrets are seasonally polyestrous and may have two litters a year
A. True B. False
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The first step to solving a problem is to _____.