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All NATE specialties are offered at two levels, A. journeyman and master. B. installation and service. C. apprentice and journeyman. D. heating and air conditioning.
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All NATE specialties are offered at two levels, A. journeyman and master. B. installation and service. C. apprentice and journeyman. D. heating and air conditioning.

User CRD
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9 votes
answer: i think d
Step-by-step explanation:
User Rhavin
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1 vote

Answer:

D

Step-by-step explanation:

User Dcgenjin
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