You should check the air in the tyre______you start on a long automobile trip.A．asB．before

When the order _____ is received from the bridge, the main air stop valve in the starting air line should be shut.

Air trapped in the hydraulic fluid of a steering system should be indicated by _____.

When occurring a fire in the scavenge air box, the following measures should be taken except for .

When installing rings on a diesel engine piston, you should check the ring＿.A.diametrical

When sending emails to professionals, you should take the time to check your message

Before signing the delivery note, you should check that the consignment is complete. W