A、 The basis for assuring an airplane remains airworthy and safe to operate is to combine the manufacturer＇s requirements with sound inspection and maintenance practices.
B、 To ensure airworthiness and safe operation of an airplane, it is essential to follow the manufacturer＇s instructions in the utilization of airplane, and perform sound inspection and maintenance practices as well.
C、 Airworthiness and safe operation are fundamental to aircraft utilization as required by the manufacturer, so sound inspection and maintenance practices are carried out.
答案：B
A、 The basis for assuring an airplane remains airworthy and safe to operate is to combine the manufacturer＇s requirements with sound inspection and maintenance practices.
B、 To ensure airworthiness and safe operation of an airplane, it is essential to follow the manufacturer＇s instructions in the utilization of airplane, and perform sound inspection and maintenance practices as well.
C、 Airworthiness and safe operation are fundamental to aircraft utilization as required by the manufacturer, so sound inspection and maintenance practices are carried out.
答案：B
A. When the light goes off, set the switch to NORMAL.
B. When the light is illuminated, move the switch to NORMAL.
C. When the light is extinguished, move the switch to NORMAL.
解析：这道题考察的是根据指示操作开关的能力。正确答案是B: 当灯亮起时，将开关设置为正常。这句话的意思是当灯被点亮时，你需要把开关设置为正常。选项A中的“goes off”表示灯熄灭，与题目中的“comes on”相反，所以不是正确答案。选项C中的“extinguished”也表示灯熄灭，与题目中的“illuminated”相反，所以也不是正确答案。
举个生动的例子来帮助理解：想象你在一个房间里，有一个开关控制着房间里的灯。当你看到灯亮起时，你需要把开关设置为NORMAL，这样灯就会保持亮着。所以正确答案是B。
A. The auxiliary battery and auxiliary battery charger and the main battery connect together during non-normal conditions to help supply power.
B. In normal conditions,the auxiliary battery and auxiliary battery charger should be disconnected.
C. In non-normal conditions,the auxiliary battery and auxiliary battry charger should be disconnected.
A. Take care to the absence of leakage during the execution of each step in the valve test.
B. Throughout the valve test, verify that there are no obvious signs of leakage at each step.
C. Make certain that no leakage is present as you proceed with each step of the valve test.
A. Use the correct tools to open the containers for these materials.If you do not follow these prerequisites, injury to your skin and lungs can occur.
B. Get the corrective tools to open the containers for these materials.If you do not obey these precautions, injury to your skin and lungs can occur.
C. Get the proper tools to open the containers for these materials.If you do not observe these precautions, injury to your skin and lungs can occur.
A. Staff must violate this procedure.
B. All persons must follow this procedure.
C. Personnel must deviate from this procedure.
A. Light surface blooming, which can occur on items in storage, is not detrimental to the component.
B. Surface blooming, often found on corroded items, has little adverse effect on the component when it is mild.
C. Items in storage tend to have surface blooming which is beneficial to the component.
A. Incorrect adjustment of the stops will lead to accurate test results.
B. In precision, test results cannot occur unless the stops are adjusted properly.
C. If the stops are not adjusted Incorrectly, the test results will not be precise.
A. For "emergency", the related failure should be responded immediately, for example, the total engine failure, fire or smoke, sudden cabin pressure lost.
B. An "Emergency" almost including a serious failure that requires later response, such as a total engines failure, flame out or smoke, or rapid cabin pressurization.
C. For "emergency", the related failure should be treated immediately, for example, the total engine is not malfunctioning, fire or smoke, sudden cabin pressure lost.
A. Use of cabin pressurization during Takeoff, landing, or in flight shall be carefully restricted.
B. Use of cabin pressurization during Takeoff, landing, or in flight has limitations that shall be observed.
C. You shall follow the strict requirements when using cabin pressurization during Takeoff, landing, or in flight.
A. The positive pressure relief valves are fail safe devices. If the aft outflow valve cann’t be closed, these positive pressure relief valves bleed fuselage pressure overboard.
B. The positive pressure relief valves are fail safe devices. If the positive pressure relief valves fails closed, these aft outflow valve bleed fuselage pressure overboard.
C. The positive pressure relief valves are fail safe devices. If the aft outflow valve fails closed, these positive pressure relief valves bleed fuselage pressure overboard.
