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tori.warner tori.warner
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6 years ago
A new refrigerant, required to be used in the USA beginning in year 2021, is ________.
A) SNAP 2011      B) R 744      C) R 134a      D) R 1234yf
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natatorrnatatorr
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6 years ago
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tori.warner Author
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#2
6 years ago
Ready for finals now Monkey
wrote...
#3
6 years ago
Good luck my friend!
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