A、the main portion identifying the consignment
B、a three-digit prefix identifying the carrier
C、the main portion identifying the carrier
D、the last check digit for accounting and security purposes
更多“The air waybill number is the identification of each consignment and comprises three parts（）.”相关的问题
A、increases the density of the air B、decrease the density of the air C、increases the specific heat of the air D、decreases the specific heat of the exhaust
A、the pressure of the starting air is high enough B、there is enough air in the air reservoirs C、the air is supplied into the cylinders in the appropriate sequence D、all of the above
A、Holding the valve open for a long period B、Increasing the starting air pressure used C、Opening the stating air valve quickly D、Reducing the starting air valve size
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