A、 By using the basic provisions of FAR 21.50,revisions become consistent with the format of the specification.
B、 FAR 21.50 provisions are the basic to the revisions which are consistent with the format of the specification.
C、 To make revisions consistent with the format of the specification,the provisions of FAR 21.50 should be adopted as a basis.
答案：B
A、 By using the basic provisions of FAR 21.50,revisions become consistent with the format of the specification.
B、 FAR 21.50 provisions are the basic to the revisions which are consistent with the format of the specification.
C、 To make revisions consistent with the format of the specification,the provisions of FAR 21.50 should be adopted as a basis.
答案：B
A. Use the clean solvent again to leave the oils on the surface.
B. If necessary,clean the oils by applying clean solution.
C. Remove the oils,if necessary,by applying clean solvent again.
A. In technical texts,you can use abstractions to make sentiments shorter and easier to read.
B. In technical texts,you can use abbreviations to make sentences shorter and easier to read.
C. In technical texts,you can use abstractions to make sentences shorter and easier to understand.
A. Oil comes from the supply system to lubricate and cool internal components in the engine.
B. Oil coming from the scavenge system will supply lubrication and cooling for the internal components of the engine.
C. The oil supply system will give lubrication and cooling for the internal components of the engine.
A. 始终保持液晶显示器在最大亮度。
B. 在液晶显示器上,最大限度保持亮度是可控的。
C. 始终保持液晶显示器的亮度处于最小状态。
A. 该部件中的空气循环使得特定部件的温度不超限。
B. 某些部件的温度不超限因此该部件中的空气能够流动。
C. 该部件中的空气的旋转和特殊部件的温度均不超限。
A. 手册主题的顺序安排是为了增加飞行中的实用性。
B. 手册设置的主题是为了方便飞行中的使用。
C. 手册的主题中增加了在飞行中有用的顺序安排。
A. Obey the safety precautions when you do work with high voltages.
B. When working with high resistances,you should follow the safety precautions.
C. The safety precautions are optional in an environment with high voltages.
A. 拆除所有阻止操纵舵面自由移动的校装销和设备。
B. 拆下所有的插钉和设备使操纵舵面自由移动。
C. 拆下所有的开口销,并移走防止操纵舵面自由移动的设备。
A. Other format is not permitted.
B. It's not permissible to use this form.
C. Either format is allowed.
A. If a power supply system is independent to provide service to only one component or single- function system,it will be discussed together with the components or systems it serves.
B. When a power source services a singlecomponent,or serves a single functioning system,that power source will be included in the discussion of the component or system which it serves.
C. When a power supply is a complete component or single-function system,the device it serves is discussed separately from its own component or system.
