457、给电瓶充电。

A. 　操作信息包括(但不限于)用于选择 CAPS 的结果-怎样制定 CAP 的要求

B. 　可选信息应包括(但不限于)用于选择 CAPS 的基本原理关于制定 CAP 的规则

C. 　可选信息包括(但不限于)用于选择 CAPS 的依据 CAP 要求是如何确定的

A. 　检查流量控制管路,避免节流孔发生堵塞或被污染。

B. 　检查节流孔,避免流量控制管路发生堵塞和出现污染物。

C. 　检查流量控制孔,确保节流孔无堵塞和污染。

A. 　 This section includes all the limits of the optional systems and equipment.

B. 　 Limitations related to optional systems may be contained in this section.

C. 　 Only the limitations which are relevant to optional systems might be including in this section

A. 　 Insert the pin of the apron service door security connector, then you can perform this procedure.

B. 　 The ramp service door safety pin should be engaged until you start this procedure.

C. 　 Firstly you should perform this procedure then you can engage the ramp service door safety connector
pin.

A. 　 Quickly turn on the oxygen system, the mask begins to supply oxygen.

B. 　 Pull the oxygen mask with a sudden movement to start the flow of oxygen.

C. 　 Suddenly start the oxygen supply system, the lake drops.

A. 　确保舱门与其附近表面平齐。

B. 　确保使用与舱门表面相似的材料对舱门进行打磨。

C. 　确保舱门材料与其附近表面材料相同。

A. 　门是由基础复合材料增强塑料制成的。

A. 　 Provide the pneumatic power for the system.

B. 　 Supply the electrical power for the system.

C. 　e Remove the electrical power( for the system.

A. 　 Since airplanes usually have long service lives, their flights are surely safe.

B. 　 It is mandatory to ensure the flight safety because of the iong1ives of airplanes

C. 　 Despite the long lives of airplanes, their flight safety cannot be assured

A. 　 Tighten the bolts manually until you can do it with the specified tool.

B. 　 Tighten the bolts manually if it is not feasible to doit with the specified tool.

C. 　 In case that you cannot do it with the specified tool in case, tighten the bolts manually.