A、 The wording given in the approved example is of a suggested nature. It only represents approved words for writing the same information. You can express the same thing with different constructions and other approved words.
B、 It is necessary to use these terms in the approved example sentences to write standard information. You can choose what to express and how to express it from the approved structure
C、 The wording must be approved to indicate that the information should be written to the same standard and you can often use similar structures and words to describe the same thing.
答案：A
A、 The wording given in the approved example is of a suggested nature. It only represents approved words for writing the same information. You can express the same thing with different constructions and other approved words.
B、 It is necessary to use these terms in the approved example sentences to write standard information. You can choose what to express and how to express it from the approved structure
C、 The wording must be approved to indicate that the information should be written to the same standard and you can often use similar structures and words to describe the same thing.
答案：A
A. There is enough oil.
B. Some oil must be drained.
C. More oil must be added.
解析：这道题考察的是对英语中"enough"和"sufficient"的理解。在题干中说油箱里有足够的油，这里的"sufficient"和"enough"都表示"足够的"意思。在选项中，选项A说"There is enough oil."，意思是"有足够的油"，符合题干的意思，所以答案是A。
举个生动的例子来帮助理解，就好比你在煮面条时，如果水里有足够的水，面条就能够被充分煮熟。这里的"足够的水"就可以用"enough water"或"sufficient water"来表达。
A. Each surge tank has a vent scoop and pressure relief valve on its access door.
B. The vent scoop and pressure relief valve each has an access door in the surge tank.
C. The surge tank has a vent scoop and pressure relief valve on each access door.
A. The antenna should be put in the right position on the airplane surface.
B. There is an antenna positioning in the suitable place on the airplane skin.
C. Correct the antenna position on the airplane surface.
A. Only representatives from ASD can join the group.
B. Representatives from countries that are not members of ASD are hardly to take part in the group.
C. Both representatives from ASD and from countries that are not members of ASD can join the group.
A. Put the bell crank and shaft with identification to prevent improper installation.
B. Identify the bell crank and shaft with marks to prevent wrong installation.
C. Put the bell crank and shaft with identification to prevent wrong installation.
A. With the aid of the component manufacturer, all components in this chapter can be overhauled in any workshops with different qualifications.
B. Without the data supplied by the component manufacturer, it is possible for the most qualified shop to overhaul any components included in this chapter.
C. You must overhaul any or all components in this chapter in an eligible shop on the basis of data provided by the component manufacturer.
A. The Boeing 747 symbolizes the beginning of a new ear in air transport.
B. The Boeing 747 is the first type of airplane in air transport.
C. Modern air transport started from the Boeing 747.
A. The exit doors are mainly used for passenger boarding.
B. The exit doors are only used for evacuation.
C. The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.
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. Using a locally made tool to do the test is also accepted.
B. You can also make a local tool to do this test.
C. You can also make a tool to do this test locally.
