2107.Make sure that you can hear the flight deck conversation in the headphone.

A. Clamps should be spaced at intervals not exceeding 24 inches.Clamps on wire bundles should be selected so that they have a snug fit without pinching wires.

B. Pins should be spaced at intervals not exceeding 24 inches.Pins on harness should be selected so that they have a snug fit without pinching wires.

C. Pins should be spaced at intervals not exceeding 24 inches.Pins on harness should be selected so that they have a snug fit without scratching wires.

A. Ensure that the parts bond correctly by applying pressure on the base of the patch.

B. Apply weight to the patch surface to ensure a correct bond between the parts.

C. Do not put pressure on the surface of the patch,as it is unnecessary for proper bonding.

A. 燃油排放系统保持油箱压力接近环境压力。太大的压力会引起机翼结构损坏。

B. 燃油通风系统保持油箱压力接近大气压力。压差过大会引起机翼结构损坏。

C. 燃油通风系统确保油箱压力在接近大气压时保持稳定。太大的压力变化会引起机翼结构损坏。

A. 警告和注意事项中的文字将标为粗体,而注释可以在适用的文本之后,取决于要重点突出的材料。

B. 为了突出材料的重点,警告和注意事项应在其适用的文本之前,但注释可以在适用文本之前或之后。

C. 警告和注意事项应在其适用的文本之前,但注释可以在适用文本之前或之后,具体取决于要突出显示的材料。

D. B.为了突出材料的重点,警告和注意事项应在其适用的文本之前,但注释可以在适用文本之前或之后。

E. C.警告和注意事项应在其适用的文本之前,但注释可以在适用文本之前或之后,具体取决于要突出显示的材料。

A. Wrap two tapes around the pipe connectors.

B. Wrap the pipe joints with tape twice.

C. Wind two layers of tape around the pipe joints.

A. When describing the airplane's Engine,spark plug system shall be described.

B. When describing the airplane's Engine,starter system shall be described.

C. In the description of the airplane's Engine,ignition system shall be described.

A. 这些部件很容易弯曲、断裂或不正确地对齐。

B. 这些部件很容易焊接、损坏或不正确地对齐。

C. 这些部件很容易焊接、断裂或不正确地装配。

A. 不论怎样的“危机”大多数总是会出现需要马上快速反应的故障,比如全动力故障,着火或烟雾,或者客舱的快速释压。

B. 可是一个“危急情况”几乎总伴随着故障,需要立即快速反馈,比如一个动力装置故障,着火或烟雾,或快速客舱减压。

C. 然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火灾或烟雾,或座舱快速失压。

D. C.然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火

E. C.然而,“紧急情况”几乎总是涉及需要立即和快速响应的故障,如整个动力装置失效,火灾或烟雾,或座舱快速失压。

A. This format may be used in integraor in part.

B. This format may be used in its entirety or in part.

C. This format may be used in its tacticallity or in part.

A. The incorrect operation of the connection units will result in a dirty contact.

B. A dirty contact in the connection units will cause them to operate incorrectly.

C. Improper operation of the connection units might be attributed to a dirty contact.