1751. Make sure that the tubes have no deformation

A. 关闭空调管道中的气流以备检查。

B. 关断待检查的空调管道中的气流。

C. 在空调管道中阻断气流为检查做准备。

A. These connection fittings are the fittings on the stabilizers, which are used to connect stabilizers, elevators, rudder pieces, and to support the equipment on the stabilizer;

B. These attach fittings are the fittings on the stabilizers used for the attachment of stabilizers, elevators, rudder, tabs, fairings and for the support of equipment within the stabilizer;

C. These attach fittings are the fittings on the stabilizers used for the attachment of stabilizers, rudder, elevators, tabs, fairings and the equipment within the stabilizer;

A. ASSEMBLE

B. INSTALL

C. REMOVE

A. That portion of the system which use voice adjust electromagnetic beam to transmit and/or receive messages from air-to-air, or air-to-ground installations.

B. That part of the system which utilizes sound modulated electro solenoid waves to transmit and/or receive messages from air-to-air, or air-to-ground installations.

C. That portion of the system which utilizes voice modulated electromagnetic waves to transmit and/or receive messages from air-to-air, or air- to-ground installations.

A. 技术动词在特定的技术与操作语境中给出指示和信息。

B. 技术动词用于描述指示和信息,以适用于特定的技术与操作环境。

C. 技术动词是指示性的词汇,提供有关特定技术与操作的信息。

A. Correct punctuation is important because it shows that the different parts of the text are reconnected and prevents miscomprehension.

B. Correct punctuation is important because it shows how the different parts of the text are independent and prevents accumulation.

C. Correct punctuation is important because it shows how the different parts of the text are related and prevents ambiguity.

A. Chromate is added into the primer to protect corrosion.

B. A material that protects the primer from corrosion in contained in it.

C. There is corrosion-preventive material in the primer.

A. I remember the whole thing for it happened yesterday.

B. The whole things seemed to happen yesterday so that I remember it clearly.

C. I remember the whole thing similar it happened yesterday.

A. 中心句是一篇文章的第一句,也是最重要的一句。

B. 总结句是一节内容的第一句,也是最重要的一句。

C. 主题句是一段话的第一句,也是最重要的一句。

A. 如果有编号,它们无需遵循本规范中的编号而按流程编号,为了避免因规范材料不适用飞机构型而产生的“间隙”。

B. 如果有编号,它们无需遵循本规范中的编号而按特定的方法编号,以避免因规范材料不符合飞机型号而产生的“差距”。

C. 如果有编号,它们应按顺序编号,无需遵循本规范中的编号,以避免因规范内容不适用飞机型号而产生的“间隙”。