A、 The troubleshooting section includes Description and Operations.
B、 Contents of Troubleshooting section should be prepared under "Description" and "Operations".
C、 Material of Description and Operation is the critical contents to troubleshooting section.
答案：B
A、 The troubleshooting section includes Description and Operations.
B、 Contents of Troubleshooting section should be prepared under "Description" and "Operations".
C、 Material of Description and Operation is the critical contents to troubleshooting section.
答案：B
A. A lab analysis of the contamination is required to the frequently clogged filters.
B. When you find the filters blocked in a very short time, ask the vendor to inspect them for any contamination.
C. If the filters get clogged at an unusually early stage, send them to the laboratory to analyze the contamination.
A. The function and operation of each unit in the system should be described. The location of the units shouldn’t be described.
B. The function, operation and location of each unit in the system should be deleted.
C. The function, operation and location of each unit in the system should be described.
A. Check all parts with clear defects in accordance with standard industry practices.
B. Check all parts for visible defects in accordance with standard industry practices.
C. Check all parts for serious defects in accordance with standard industry practices.
A. The accuracy of the adjustment can vary.
B. The accuracy of the adjustment can be fixed.
C. The precision of the adjustment can be prevented .
A. The manufacturer shall prepare all text in either one or two columns with justification at his own discretion , but, two columns are preferable for readability.
B. Manufacturers shall prepare all text both in one and two columns separately; however, two columns are better for reading.
C. According to the manufacturer＇ explanations, all text shall be prepared in one or two columns; however, two columns have better visual effect.
A. Take care to the absence of leakage during the execution of each step in the valve test.
B. Throughout the valve test, verify that there are no obvious signs of leakage at each step.
C. Make certain that no leakage is present as you proceed with each step of the valve test.
A. At the location shown in the figure, waterproof corrosion inhibiting compound has been used on certain aircraft construction. To keep the effectiveness of this protection, reapply the compound in these or other locations periodically.
B. Water displaying corrosion inhibiting compound has applied on certain airplanes structure in the locations in this figure. Periodic reapplication must be applied in these and other locations, so as to maintain effectiveness of this protection.
C. Water displacing anti-seize compound has been applied on certain airplanes construction in the locations in this figure. Periodic reapplication should be utilized in these and other locations, in order to keep effectiveness of the protection.
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. Light L4 illuminates within 5 seconds.
B. Light L4 comes on after 5 seconds.
C. Light L4 comes on 5 seconds before.
A. Bleed the hydraulic system.
B. Pressurize the hydraulic system.
C. Depressurize the hydraulic system.
