266、Care must be taken not to damage the firewall cover.

A. 　复合板材使搭接处更坚固。

B. 　A 加强板使搭接接头更坚固。P

C. 　经过再次强化的板材使塔接凸缘承力更强。

A. 　OEUs 将主汇流条上的 5V 交流电转换成 115V 交流电以供给排呼叫灯和 12v 交流电的阅读灯。

B. 　 OEUs 将来自主汇流条的 115V 交流电转换成用于排呼叫灯的 5V 交流电和用于阅读灯的 12v 交流电。

C. 　 OEUs 将来自主汇流条的 115V 交流电转换成 5V 和 12v 的直流电,用于排呼叫灯和阅读灯。

A. 　 Each electrical system is identified by a code.

B. 　 Each code of electrical system is identified.

C. 　 Each system is identified by an electrical code.

A. 　 The emergency procedures check list should be in precise form. The list not only tells pilots which items to
check without also provides everything about operation details of systems.

B. 　 The emergency procedures check list should be in complicated from. The list tells pilots which systems.to
bee investigated. It also provides operation details of some systems.

C. 　The emergency procedures check list should be in brief (简明)from. The list tells pilots which items to be
examined. It provides nothing about operation
details of any system.

A. 　 Each manufacturer is expected to reasonably abide by the Specification content and arrangement.

B. 　 Each manufacturer is expected to reasonably agree with the Specification content and arrangement.

C. 　 Each manufacturer is expected to reasonably substitute the Specification content and arrangement.

A. 　测量跑道灯连接的电阻。

B. 　校准跑道灯连接的电阻。

C. 　复核跑道灯连接的电阻。

A. 　将卡箍放在电缆上以将其固定到位。

B. 　将线圈放在导线上以将其固定到位、

C. 　将线圈放在电缆上以将其固定到位。

A. 　 lf liquid spills in the kitchen, all traces of the liquid must be cleaned promptly, and the concerned area
must be completely dry.

B. 　if liquid spillen inside the galley ,you must remove all signs of liquid and fully dry the areas of contamination immediately.

C. 　 lf liquid spills in the galley, all marks of the liquid must be removed at once and the polluted area must be
completely dried.

A. 　制定本规范的目的是为了降低成本

B. 　本规范是为了减少失误而制定的

C. 　规范的制定是为了发展航空安全

A. 　 When you change a word with the alternative, you must. ensure that the meaning of the sentence varies.

B. 　 The meaning of the sentence can be different when you use the alternative you select to replace a word.

C. 　 Always keep the same meaning of the sentence when you use the alternative to replace a word.