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.
答案：C
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.
答案：C
A. These buses consume power directly from the battery.
B. These buses accept the direct current of battery.
C. The battery supplies power directly to these buses.
A. Apply two kindreds of protective compound to shield the sealant from any harm caused by hydraulic fluid.
B. In order to prevent damage to the sealant from hydraulic fluid, it is necessary to apply two layers of protective compound.
C. To prevent hydraulic fluid from drowning the sealant, it is recommended to apply two layers of protective compound.
A. The operation procedure requires that the maintenance behavior be logically executable.
B. The logical maintenance steps or operating procedures constitute the maintenance procedures.
C. Break down maintenance activities into logical steps or operations as required by procedures.
A. Utilize the dimmer switch and ensure that the light＇s luminosity varies vigorously.
B. Manipulate the dimmer switch to confirm the alteration of the light＇s intensity.
C. Activate the dimmer switch and ascertain that the light＇s intensity undergoes little changes.
A. When some new kind of situation occurs, the operator should communicate openly with the manufacturer. The manufacturer should supply the operator solid assistance.
B. When the new situation gets worse, it should build the open communication between the operator and manufacturer. The operator claims the situation to get the feedback from the manufacturer.
C. When something new happens, open interconnection should exist between the manufacturer and the operator. The operator should report to the manufacturer to obtain effective discount.
A. Pull out the circuit breaker.
B. Push in the circuit breaker.
C. Remove the circuit breaker.
解析：这道题是关于如何打开一个断路器的问题。在这种情况下，正确的答案是A:拉出断路器。当我们需要打开一个电路时，通常会拉出断路器，这样电路就会中断，电流就不会流通了。所以，选择A是正确的。
举个例子来帮助你更好地理解：想象一下，你的房间里有一个灯泡，但是你想要关掉它。这时，你可以想象灯泡所在的电路就像是这道题中的断路器。当你拉出断路器时，就好像是把灯泡的电路断开了，灯泡就会熄灭。所以，拉出断路器就是打开电路的正确方式。
A. Based on different airplane design, the Emergency Procedures and other pertinent information necessary for safe operation should only be provided for some airplane.
B. Based on the particular airplane design, operating or handling distinguishing feature, Emergency Procedures and related information must be provided.
C. The Emergency Procedures and other special information necessary for safe operation shall be provided for emergencies that is common to all airplane design, operating or handling characteristics.
A. If you want to use the STE specification properly, a high professional standard is required.
B. A high level of professionalism requires the correct use of STE specifications.
C. In order to use the STE specifications appropriately, high professionalism is needed.
A. Handbooks shall be revised easily.
B. Handbooks should not be revised easily.
C. Handbooks should be developed easily.
A. The responsibility of ABC is not to modify the airplanes that belong to STC.
B. It is not STC＇s responsibility to modify ABC＇s aircraft.
C. ABC is not in charge of the aircraft modified by STC.
