A、 Do not go beyond this speed or Mach number besides in steady air, and then be careful.
B、 Do not increase by this speed or Mach number unless in steady air, and be careful.
C、 Do not exceed this speed or Mach Number except in smooth air and then only with caution.
答案：C
A、 Do not go beyond this speed or Mach number besides in steady air, and then be careful.
B、 Do not increase by this speed or Mach number unless in steady air, and be careful.
C、 Do not exceed this speed or Mach Number except in smooth air and then only with caution.
答案：C
A. A brush is cleaned by the filter element.
B. The filter element and a brush are clean.
C. Use a brush to clean the filter element.
A. Find the type and dimensions of the damage.
B. Locate the damage and its dimensions.
C. Designate the damage type and then give it a dimension.
A. 如果一个代词能参考文本中的一个或多个名词，它会使句子产生异义。如果一个句子产生异义，参考原词更换代词。这将使读者更清楚易读。
B. 如果一个代词能指代文本中的一个或多个名词，它会使句子模棱两可。如果一个句子模棱两可，用它所指的词代替代词。这将使句子更清楚易读。
C. 如果一个代词能引申文本中的一个或多个名词，它会使句子晦涩难懂。如果遇到这样的情况，更换所引申的代词。这将使句子更清楚易读。
A. The condition of the radome is very important for its performance.
B. The condition of the antenna influences its properties greatly.
C. The condition of the radar has an important effect on its characteristics.
A. You can use the left cut to enter.
B. Use the left opening for easy access.
C. Left opening is used to move easily.
A. As the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the rudder actuator below.
B. In order to depressurize standby system, the hydraulic system A must be depressurized to open the rudder hydraulic system selector valve and let hydraulic fluid flow to the lower rudder actuator.
C. Due to the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the bottom rudder actuator.
A. Operate the dimmer switch and make sure that the intensity of the light changes.
B. Control the light knob to ensure that the light strength changes.
C. Turn the light regulator on to adjust the luminous intensity.
A. A servo system is a device that has the ability to carry out an order and give a response to fufill five basic requirements.
B. A servo system is a device that has the ability to carry out an order and give a response to orders. It can finish five basic requirements.
C. A servo system is a device that has the ability to respond to and carry out an order which must be able to fufill five basic requirements.
A. 如果可能的话，告诉你的读者如果不遵守安全指令会发生什么。
B. 如果必要的话，告诉你的读者如果没有安全指令会发生什么。
C. 如果可能的话，告诉你的读者会发生什么，判断是否未遵守安全指令。
A. The brackets should be connected to the nearest components.
B. Align the brackets with the adjacent components.
C. Keep the brackets engaged with the nearby components.
