A、drain water from the air receiver
B、drain water from the cylinders
C、delay the compression process until the motor is up to speed
D、check pump alignment
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A、containers are classified as general purpose (dry cargo) container and specific purpose container B、general purpose container (GP) is suitable for the widest varieties of cargo C、specific purpose container is suitable for the specific cargo D、bulk container， reefer container， open-top container are all general purpose containers
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A、It is used to identify the maximum hop count of a subnetwork B、It is used to identify an IP address as either private or public C、It is used to identify the network to which an IP address belongs D、It is used to identify the total number of bits present in an IP address
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