试题详情

The usual control for the left pack makes sure that it supplies air at a temperature. That gives the necessary cooling for the fight compartment.

A The usual control for the left pack ensures that it supplies air at a temperature. The temperature gives the occasional cooling for the flight compartment.

B The normal control for the left pack makes sure that it supplies air. The cooling provides the necessary temperature for the flight compartment.

C The usual control for the left pack assures that the temperature of the supplied air will provide the control cabin with the needed cooling.