A、 They comprise the three parts as follows:tail assembly,the structures at the rear of the airplane ,structures forming part of and attached to the wing.
B、 They include three parts,one of them is tail assembly,one of them is the structures part at the rear of the airplane,one of them is structures part that forming part of and attached to the wing.
C、 They include two parts,one of them is tail assembly at the rear of the airplane that serve to control and maneuver the aircraft,another of them is structures part that forming part of and attached to the wing.
答案：C
A、 They comprise the three parts as follows:tail assembly,the structures at the rear of the airplane ,structures forming part of and attached to the wing.
B、 They include three parts,one of them is tail assembly,one of them is the structures part at the rear of the airplane,one of them is structures part that forming part of and attached to the wing.
C、 They include two parts,one of them is tail assembly at the rear of the airplane that serve to control and maneuver the aircraft,another of them is structures part that forming part of and attached to the wing.
答案：C
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. Airplane primary data should be displayed neither in graphs and tables.
B. Airplane behavior data shall be predicted in both graphical and tabular formats.
C. Aircraft performance parameters can be represented graphically or in tables.
A. The repair limits are not permitted as special equipment is required.
B. The repair limits are not mentioned as special equipment is required.
C. The repair limits are not set as special equipment is required.
A. The lower seal appears as the lower bearing is pulled down.
B. You can see the lower seal before pulling the lower bearing down.
C. Only after you pull the lower seal down can you see the lower bearing.
A. Remove the test cap between the Precooler Control Valve and the 3908 sensor on the control pressure sense line and ensure that there is air flowing out of the port.
B. From precooler control valve to 3908 sensor, remove the sense line test cap, make certain that the air flows from the test hub.
C. The purpose of the test cap removal from the Precooler Control Valve to the 3908 sensor is to guarantee that there is airflow at the test port.
A. Code is useless to identify the cables.
B. Put a code on the cables to identify them.
C. A tag should be attached to the cables.
A. If the pump is not suitable to be used, replace it.
B. If the pump is outmoded, replace it.
C. If the pump malfunctions, change the location for it.
解析：这道题考察的是逻辑推理能力。句子的意思是如果水泵无法维修，就应该更换它。选项A符合题意，因为unsuitable意思是不适合使用，与unserviceable意思相近，所以是正确答案。
举个生动的例子来帮助理解：假设你的手机屏幕坏了，修理店告诉你无法维修，只能更换新的屏幕。这种情况下，你会选择更换新的屏幕，因为旧的屏幕已经无法继续使用了，就像题目中提到的水泵无法维修一样。所以正确的做法是选择更换新的屏幕，就像选择选项A中的意思一样。
A. Guarantee a consistent performance of the probe.
B. Maintain an uninterrupted movement of the probe.
C. To ensure continuous movement, the probe must be kept in motion.
A. Each manufacturer is expected to reasonably abide by the Specification content and arrangement.
B. Each manufacturer is expected to reasonably agree with the Specification content and arrangement.
C. Each manufacturer is expected to reasonably substitute the Specification content and arrangement.
A. The airworthiness and safe operation of an airplane is assured if it＇s used as its original design purpose, properly inspected and carefully maintained.
B. The manufacturer is intended to utilize an airplane with sound inspection and maintenance practices because that is the basis for assuring the airplane remains airworthy and safe to operate.
C. The airplane is designed to be used as the manufacturer＇s intention. Users shall properly inspect the airplane and do sufficient maintenance to assure its airworthiness and operation safety.
