Which of the following statements is true about the heat dissipation of equipment?

A、
A、Theairductsoftheequipmentshallbematchedwitheachother,anddifferentairductsshallbeeffectivelyisolated.Theairoutletofoneequipmentshallnotbecometheairinletofotherequipment,andtheairinletandoutletoftheequipmentshallnotbeblocked.
B、
B、Theleft,right,frontandbackoftheinstallationequipmentshallensureaheatdissipationspaceofmorethan5cm.
C、
C、Keepthemachineroomataconstanttemperatureof22degrees.
D、
D、Alloftheabovearecorrect.