A、 Write the instructions in the mandatory mode.
B、 Write the instructions in the imperative form.
C、 Write the instructions in the active mode.
答案：B
A、 Write the instructions in the mandatory mode.
B、 Write the instructions in the imperative form.
C、 Write the instructions in the active mode.
答案：B
A. Be patient while the door is opening.
B. Be aware of the door when it is opening.
C. Be careful while the door is opening.
A. 这部分系统被用来控制空气中的湿度，控制臭氧含量，从空调空气中去除放射性污染物，并对空气应用除氧剂、净化器等。
B. 系统的这个部分被用于控制空气中的颗粒，控制区域聚集度，过滤空调空气中活跃的无线电波，并在合适的时候对空气用除氧剂和杀虫剂等处理。
C. 系统的这部分被用于控制空气中的水分，控制臭氧浓度，过滤空调空气中的放射性碎屑，并在适用时使用除臭剂、杀虫剂等处理空气。
A. All the related data shall be grouped in a logical manner.
B. A logical method is required to group the unconcerned data together.
C. Divide all the involved data into groups logically.
A. Other format is not permitted.
B. It＇s not permissible to use this form.
C. Either format is allowed.
A. 本节应包含适当的警报或注意，以告知运营人员有责任确保遵守所有适航命令，并确保飞机的操作、服务和维修在需要时按照《联邦航空条例》进行。
B. 本节应以适当的警告或注意形式，提醒运营人确保遵守所有适航指令，确保按照《联邦航空规章》对飞机进行勤务、养护和维修。
C. 本节应包含适当的警告或注意事项，按照《联邦航空条例》，告知相关人员有责任遵守所有审批指令，确保必要时飞机的操纵、服务和修理可进行。
A. A motor can power all the systems.
B. One generator can power for all the systems.
C. One generator can supply power for all the systems.
A. 我们建议你不要在机库里执行此步骤。
B. 我们建议你不要在车间里执行此程序。
C. 我们推荐你不要在吊具上执行此过程。
A. In some cases, extension of inspection intervals may be possible if the data suggests that the onset of fatigue problems occurs at a greater number of flight hours than initially predicted.
B. In some cases, if the data shows that the number of flight hours of fatigue problems occurring is greater than initially predicted, it is possible to extend the duration of inspection.
C. In some cases, if the data suggests that the fatigue problem initially emerges at more flight hours than originally predicted, lengthening of inspection intervals is compulsory.
A. Use some auxiliary screws to assemble the unit temporarily.
B. You shall use some additional screws to install the unit permanently.
C. Temporarily disassemble this unit using some auxiliary screwdrivers.
A. Technical verbs are the same as other approved verbs in STE to obey the rules .
B. Technical verbs must obey the same rules as other approved verbs in STE.
C. The approved verbs are required to obey the rules in STE as well as the technical verbs.
