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【Daily Question】Utilities - Water Supply and Drainage - 20191219

2019-12-19View Original

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The number of sprinklers controlled by one alarm valve assembly is: in wet systems and pre-action systems, it should not exceed ( ) units; The number of dry systems should not exceed ( ). A.1000 ; 800 B.800 ; 800 C.800 ; 500 D500 ; 500 Answer: C

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