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.
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.
答案：C
A. The compressing of the spring can cause the valve to open.
B. There is no change of the valve when the spring compresses.
C. After compressing of the spring, the valve goes to closed position.
A. If the pump is not suitable to be used, replace it.
B. If the pump is outmoded, replace it.
C. If the pump malfunctions, change the location for it.
解析：这道题考察的是逻辑推理能力。句子的意思是如果水泵无法维修，就应该更换它。选项A符合题意，因为unsuitable意思是不适合使用，与unserviceable意思相近，所以是正确答案。
举个生动的例子来帮助理解：假设你的手机屏幕坏了，修理店告诉你无法维修，只能更换新的屏幕。这种情况下，你会选择更换新的屏幕，因为旧的屏幕已经无法继续使用了，就像题目中提到的水泵无法维修一样。所以正确的做法是选择更换新的屏幕，就像选择选项A中的意思一样。
A. Make sure the drain hose＇s open end is oriented in align with the structure.
B. Direct the open end of the drain hose away from the storage construction.
C. Ensure that the open end of the drain hose faces away from the structure.
A. For purposes of this specification, "aircraft" means the relevant optional parts of the airframe and parts specified in the type certificate or supplied by the aircraft manufacturer
B. For the intention of this specification, " airplane" is know as the airframe selective components set forth in the Type Certificate or provided by the airplane producer.
C. For purposes of this specification, "aircraft" means the airframe and parts specified in the Type Certificate or the related optional parts supplied by the aircraft manufacturer.
A. Additional information may follow the check list to make the check list easier for the pilots to understand it.
B. The additional information should be followed by the pilots to make better understanding the check list.
C. The additional information is followed the check list, to make the pilots better understanding the check list the pilots should read it in sequence.
A. If the microswitch becomes unserviceable, proceed with the actuator activation procedure to damage the valve.
B. When the microswitch is functional, ensure the deactivation procedure of the actuator is performed to avoid any harm to the valve.
C. If the microswitch malfunctions, execute the actuator deactivation procedure to protect the valve from harm.
A. Do not perform any work to the aircraft during maintenance.
B. It is forbidden to refuel the aircraft during maintenance.
C. You can add fuel to the aircraft at any time.
A. The airworthiness and safe operation of an airplane is assured if it＇s used as its original design purpose, properly inspected and carefully maintained.
B. The manufacturer is intended to utilize an airplane with sound inspection and maintenance practices because that is the basis for assuring the airplane remains airworthy and safe to operate.
C. The airplane is designed to be used as the manufacturer＇s intention. Users shall properly inspect the airplane and do sufficient maintenance to assure its airworthiness and operation safety.
A. Use a degreasing agent to remove oil and grease.
B. Draw oil and grease from a degreasing agent.
C. Add oil and grease into a degreasing agent.
解析：这道题是关于使用去油脂剂清除油和油脂的方法。正确答案是A: 使用去油脂剂清除油和油脂。
解析：当我们需要清除表面上的油和油脂时，我们可以使用去油脂剂。这种去油脂剂可以有效地溶解油和油脂，使其容易被擦拭或清洗掉。因此，正确的做法是使用去油脂剂来清除油和油脂，而不是将油和油脂从去油脂剂中抽取出来，或者将油和油脂添加到去油脂剂中。
举个生动的例子，就好像你在厨房里做饭时不小心弄脏了炉灶上的油污，这时你可以使用去油脂剂来清洁。就像是在使用洗洁精清洗碗筷一样，去油脂剂可以帮助你轻松清除油污，让炉灶恢复干净亮丽的状态。
A. Structural fasteners are not included in the normal maintenance items, they are provided separately in the maintenance information.
B. Structural fasteners do not belong to normal maintenance items, so the maintenance information does not include this part of the content.
C. Some structural fasteners can be repaired during normal maintenance, so the maintenance information includes the corresponding content.
