A、 The units used by pilots are the most valuable.
B、 The units used are those which are the most expensive for pilots.
C、 The units are the most useful for the pilots.
答案：C
A、 The units used by pilots are the most valuable.
B、 The units used are those which are the most expensive for pilots.
C、 The units are the most useful for the pilots.
答案：C
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. 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. Landing gear is left for ten minutes.
B. Landing gear should be kept extended for ten minutes.
C. Extend landing gear after ten minutes＇ retraction.
解析：这道题是关于飞机起落架的操作指令。在这个情景中，指令是让起落架延长十分钟。正确答案是B，即起落架应该被延长十分钟。这个指令是为了确保起落架在使用前得到充分的检查和准备，以确保飞行安全。
举个生动的例子来帮助理解这个知识点：想象一下你是一名飞行员，你的飞机刚刚降落在机场，地面工作人员告诉你要将起落架延长十分钟。这意味着你需要按照指令将起落架保持在延长状态，以便地面工作人员可以进行必要的检查和维护工作。只有在起落架得到充分准备之后，你才能安心地继续下一次飞行。这个例子帮助你更好地理解了为什么起落架需要被延长十分钟这个操作指令的重要性。
A. The correction installation of the upper drag strut can prevent the retraction of the lower drag strut.
B. If the upper drag strut is installed improperly, the lower one will be hit during retraction.
C. The removal of the upper drag strut has to be done properly so that the lower one can fully extend.
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.
A. Estimate the quality of fuel used for the flight.
B. Compute the quantity of fuel required for the flight.
C. Evaluate the quantity of fuel in the flight.
A. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.neither short-term nor long-term.
B. Instructions required for parking or storing the aircraft under normal or abnormal conditions, such as engine removal, aircraft damage, etc., which are used for short-term or long-term under extreme weather conditions.
C. Those instructions necessary to park or store the aircraft in normal or abnormal conditions such as with engines removed, aircraft damaged, etc.either short-term or long-term.
A. Ignore the absence of contamination in the fuel sample and continue with the procedure.
B. Continue with the procedure if the fuel sample does not exhibit any contamination.
C. Proceed with the procedure regardless of any contamination found in the fuel sample.
A. The Preface has been neglected in the sample CAP in Section III and the necessary information has resumed in the Objectives.
B. The Preface has been deleted in the sample CAP in Section III and the necessary information has been excluded in the Objectives.
C. The Preface has been canceled in the sample CAP in Section III and the necessary information has been covered in the Objectives.
A. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shall also state precautions to be obeyed.
B. The removal/installation portion shall state clearly the sequence of steps required to remove and reinstall a component or unit. This portion shalln’t include precautions to be obeyed.
C. The removal/installation portion shall hardly state the sequence of steps required to move and reinstall a component or unit. This portion shall also include precautions to be watched.
