A、 When you lift the aircraft on racks, keep the center of the aircraft between these limits.
B、 When you lift the aircraft on jacks, keep the center of gravity between these limits.
C、 When you lift the aircraft on jacks, the gravity of the aircraft shall be limited.
答案：B
A、 When you lift the aircraft on racks, keep the center of the aircraft between these limits.
B、 When you lift the aircraft on jacks, keep the center of gravity between these limits.
C、 When you lift the aircraft on jacks, the gravity of the aircraft shall be limited.
答案：B
A. When you change a word, always assure that the alternative you choose does not change the sequence of the sentence.
B. When you replace a word, always make sure that the alternative you select does not change the meaning of the sentence.
C. When you exchange a word, always ensure that the alternative you pick does not change the order of the sentence.
A. The Check List may also include additional information relevant to the operation of the airplane, such as performance details, alternate equipment operation, etc., which the pilot might rarely use.
B. The Check List may also contain supplemental information pertinent to the operation of the airplane, such as performance data, optional equipment operation, etc., that the pilot might routinely use.
C. The Check List may also cover extra information that the pilot might daily use and is decisive to the control of the airplane, such as performance data, alternate equipment operation, etc.
A. 描述飞机发动机时，应描述有关发动机仪表的以下信息： 1.仪表操作方法 2.读数极限值和典型正常值（如适用）。
B. 描述飞机发动机时，应描述发动机仪表有关： 1.操作方法 2.读数限制和典型值（如适用）。
C. 描述飞机发动机时，应描述一下发动机仪表： 1.操作方法 2.限制读数以及典型值（如适用）。
A. STE是一种活的语言，需要用户的反馈来不断改进。
B. STE是一种生活的语言，需要用户的培育来不断验证。
C. STE是一种活的语言，需要用户的输入来不断应用。
A. If necessary, prepare a gasket.
B. If necessary, add a pin.
C. Add a washer if necessary.
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. Flush the pipes with a disinfectant solution.
B. Flush the pipes by a virus solution.
C. Flush the pipes by a anti-virus fluid.
A. Inspect the drain holes for obstruction.
B. Check for the drain holes for abrasion.
C. Check the drain holes for leakage.
A. Do not put different topics in the same paragraph.
B. Do not provide different meanings in the same parentheses.
C. Do not arrange different contents in the same chapter.
A. 动物的排放物的热量比人类高，因此飞机上更有可能聚集潮气。
B. 动物会比人类产生更多热量，因此飞机上更有可能集聚潮气。
C. 动物产生的热量比人类高，因此飞机上累积的潮湿度可能更高。
