A、 The interval between checks is at least two minutes.
B、 The lowest limit of checks is two minutes.
C、 Between two checks, it needs two minutes.
答案：A
A、 The interval between checks is at least two minutes.
B、 The lowest limit of checks is two minutes.
C、 Between two checks, it needs two minutes.
答案：A
A. Some jobs or processes consist of several basic operations, with a number of minor steps or work items under each.
B. Some basic operations with a few small steps or work items are included in some work or processes.
C. Some jobs or processes constitute a few basic operations, with several minor steps or work items under each.
A. The generators supply a three-phase voltage. The frequency of this voltage increases when the generator rotor speed increases.
B. The rate of the three-phase voltage generated by the generator is proportional to the rotational speed of the generator rotor.
C. The frequency of the three-dimensional voltage produced by the generator is changed with the rotational speed of the generator rotor.
A. If design appraisals by a DER is beyond his normal apprvoal, each appraisal can only be authorized by the known ACO according to current condition.
B. Design approvals by a DER that are outside his normal authorization may only be authorized by the cognizant ACO on a case by case basis.
C. The familiar ACO can approve each designation approval one one one according to condition if designation approval by a DER is outside his normal range.
A. 注意，如果没有正确执行以下步骤，会导致人员伤亡。
B. 警告，如果你不正确听从指挥，则会导致人员伤亡。
C. 如果没有正确遵循警告里的要求，将会导致人员伤亡。
A. 指示器显示储压器已满。
B. 仪表显示油箱已满。
C. 指示器显示油箱已满。
A. 标题页的背面应留白，以避免有可能漏插飞机序列号和注册号而需要修改。
B. 标题页的背面应保留空白，以避免需要修改以及有可能遗漏插入飞机的序列号和注册号。
C. 标题页的背面应保持空白，从而不用改版，也可以避免有可能漏插飞机序列号和注册号。
A. 将修理的盖板铺在受损伤的区域。
B. 把修理补片精确地补到损伤区域。
C. 精确的将受损伤的区域围挡起来。
A. 标题页的背面应留白，以免需要改版，以及可能遗漏插入的飞机序列号和注册号。
B. 标题页的背面应保持空白，以备需要插入可能遗漏的飞机序列号和注册号。
C. 标题页的背面应有充分的内容，以免被插入遗漏的飞机序列号和注册号。
A. Emergency Lighting is a independent subsystem used to provide illumination in case of primary electrical power failure.
B. Urgency Lights that supply the lights when the major electronic power fails is a separate subsystem.
C. Ambulance Lights is used to supply lights if the main electrical sources malfunctions as an independent subsystem.
A. 如果第9节载明了限制条件，那么在本节应包括一条说明，向读者说明可从其中查阅可选系统或设备的限制条件。
B. 如果第9节包含了限制条件，那么其中应对可选系统或设备的限制条件进行说明，供读者参考。
C. 如果第9节给出了限制条件，则那些可供选择的系统或设备应说明符合这些限制条件，可供读者参考。
