When moisture is present in a refrigeration system, it will react with the refrigerant and the oil to form ____.
A. carbon dioxide
B. acid
C. carbon monoxide
D. all of the above
Answer: B
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Which scientist first crystallized gibberellin A, and what material was used for purification?
What will be an ideal response?
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A professional service technician must have good mechanical skills and a strong emphasis on ______ ______.
Fill in the blank(s) with the appropriate word(s).
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Underground utility systems do not have to be coordinated prior to starting installation.
Answer the following statement true (T) or false (F)
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During gestation, nutrient-rich blood and oxygen are supplied to the piglet through the:
A. navel cord B. needle teeth C. colostrum D. udders
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