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.
答案：C
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.
答案：C
A. Such tests or checks will be completed according to the conditions.
B. Such tests or checks will be very complex according to the conditions.
C. Such tests or checks will be different in complexity according to the conditions.
A. Provide the pneumatic power for the system.
B. Supply the electrical power for the system.
C. Remove the electrical power of the system.
解析：这道题是关于系统去能化的问题。De-energize意味着去能化，也就是移除系统的电力。所以正确答案是C。
让我们通过一个生动有趣的例子来帮助你更好地理解这个概念。想象一下你的手机是一个系统，它需要电力才能正常工作。当你想要关闭手机时，你会按下电源按钮，这样手机就会De-energize，也就是移除电力，手机就会关闭。在这个例子中，De-energize就相当于移除手机的电力，让手机关闭。
A. The Check List may be designed by "Challenge" and "Response" headings or by "Item" and "Condition" headings for two pilot airplanes or for single pilot Airplanes.
B. The Check List for the pilot may be set by "Challenge" and "Response" headings for two airplanes or by "Item" and "Condition" headings for single Airplane.
C. For two pilot airplanes, "Challenge" and "Response" headings may be used on the Check List. For single pilot Airplanes, "Item" and "Condition" headings may be used.
A. This section includes all the limits of the optional systems and equipment.
B. Limitations related to optional systems may be contained in this section.
C. Only the limitations which are relevant to optional systems might be including in this section.
解析：答案解析：B。这道题考察的是关于可选系统的限制性内容可能包含在哪个部分。选项A中说这部分包括所有可选系统和设备的限制，这是一个绝对化的说法，不准确。选项C中说只有与可选系统相关的限制可能包含在这部分，这也是一个绝对化的说法，不准确。选项B中说与可选系统相关的限制可能包含在这部分，是一个相对较为准确的描述，因此是正确答案。
生活中，我们也经常会遇到类似的情况。有些事物或者规定可能会有一些限制，这些限制可能会在相关的部分或者章节中进行详细说明，这样我们就能更好地了解和遵守这些规定。所以，当我们阅读相关内容时，要仔细留意可能存在的限制性内容，以免造成不必要的麻烦。
A. Legal meaning whatsoever and implications couldn＇t be enclosed to the rules and terms in this document.
B. No legal significance or meanings should be fixed to the regulations and terms in this document.
C. The rules and terms in this document have no legal meaning or imply something.
A. Restrictions on use of cabin pressurization during Takeoff, landing, or in flight shall be noted
B. That portion of the system is used to de-ice all airfoil surfaces once ice is formed.
C. All airfoil surfaces are equipped with that portion of the system to stop ice formation.
A. The parts must be assembled tightly.
B. Make sure that the parts are attached securely.
C. The parts must be assembled loosely.
A. When stop the engine, make sure that the engine decelerates to 500 RPM.
B. If the engine decreases to 500 RPM, you must stop it.
C. When the engine RPM decreases 500, you＇d better stop the engine.
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.
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.
