A、 When a capital letter or a symbol is used for a unit of measurement, you should take it and the number before it as a word.
B、 When used in measurement, the acronym or the symbol and the related number should be taken as a word.
C、 When you write an abbreviation or a symbol for a unit of measurement, count it and the preceding number as one word.
答案：C
A、 When a capital letter or a symbol is used for a unit of measurement, you should take it and the number before it as a word.
B、 When used in measurement, the acronym or the symbol and the related number should be taken as a word.
C、 When you write an abbreviation or a symbol for a unit of measurement, count it and the preceding number as one word.
答案：C
A. Use a hole instrument to examine the turbine internally.
B. Use a borescope to examine the combustor internally.
C. Use a hole instrument to examine the combustor externally.
A. 给计算机备份文件,常规时期
B. 定期备份计算机文件
C. 定期清理计算机文件
A. 飞机内部连接外部电源和飞机电气系统的系统。
B. 飞机整体连接外部电源和飞机电气系统的系统。
C. 飞机外部连接内部电源和飞机电气系统的系统。
A. Switch on the ground power
B. Connect the ground power
C. Put the ground power
A. 飞机已按照制造商要求或同等标准进行检查
B. 飞机已按照运营人要求或同等标准进行维护
C. 飞机已按照制造商建议或同等标准进行维护
A. Normally for an aircraft that has tail wheels, you can tow the tail wheels forward. Todor this you can connect the tow bar to the main landing gear.
B. Usually, for an aircraft that has tail wheels, you can link the tow bar to the main landing gear, thus you can tow the aircraft forward.
C. For an aircraft that has tail wheels: you can tow the aircraft forward only when the tow bar is linked to the main landing gear.
A. The usual control for the left pack ensures that it supplies air at a temperature. The temperature gives the occasional cooling for the flight compartment.
B. The normal control for the left pack makes sure that it supplies air. The cooling provides the necessary temperature for the flight compartment.
C. The usual control for the left pack assures that the temperature of the supplied air will provide the control cabin with the needed cooling.
A. Use the specified one if the equivalent material is not available.
B. Use the available equivalent one if no material is specified.
C. If you can not get the specified material, use an equivalent.
A. The fuselage is divided horizontally by the floor, which is built up from beams and panels.
B. The fuselage is divided vertically by the floor, which is built up from beams and panels.
C. The fuselage is divided vertically by the floor,that is made from beams and panels.
A. Make sure that you replace all tools and equipment.
B. Make sense that you reinstall all tools and equipment.
C. Make sure that you remove all tools and equipment.
