A、the temperature
B、the rust
C、the pressure
D、the humidity
更多“You must take good care of the drainage cock of the air control systemBecause （） leads scale formed which might malfunction the pilot control valve and other instruments.”相关的问题
A、You must use log transactions. B、You must use Calendar Repair Assistant （CRA）. C、You must select the resource booking attendant. D、You must set up Task Scheduler.
A、There must be something wrong B、Just have a good rest. C、Yes, thank you, doctor. But I still don't feel good. D、Don't worry about me.
A、May I help you? B、Plese take a good rest C、Would you like to see a doctor? D、Do you want a doctor?
A、You must configure block change tracking file B、You must have first level 1 backups for RMAN to restore blocks C、You must ensure that the SALES database is mounted or open D、You must have full or level 0 backups for RMAN to restore blocks E、You must take the tools01.dbf data file offline before you start a block media recovery
A、A. You must configure block change tracking file B、B. You must have first level 1 backups for RMAN to restore blocks C、C. You must ensure that the SALES database is mounted or open D、D. You must have full or level 0 backups for RMAN to restore blocks E、E. You must take the tools01.dbf data file offline before you start a block media recovery
A、You must have two toxic vapor detectors or the pumproom must meet special requirements B、Each crew member must be provided with an emergency escape breathing apparatus C、A person taking cargo samples must wear protective clothing D、If you are carrying propionic acid also，the venting systems must be segregated
A、You must have two toxic vapor detectors or the pumproom must meet special requirements B、Each crew member must be provided with an emergency escape breathing apparatus C、A person taking cargo samples must wear protective clothing D、If you are also carrying allyl alcohol，the venting systems must be segregated
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