【Daily Question】Utilities - Water Supply and Drainage - 20200114
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The basic components of an internal building drainage system are: fixtures and receptacles for production equipment, drainage pipes, and ( ) A. cleaning equipment and vent pipes B. cleaning equipment and local treatment structures C. vent pipes and lifting equipment D. cleaning equipment and lifting equipment Answer: A
A. Dredging equipment and ventilation pipes
A. Dredging equipment and ventilation pipes