Measure the volume of the oil carefully.

A. instruments are delicate precision devices and calibrited used to measuring electrical .All instruments should be periodically checked for accuracy by the manufacturer or by some shop approved by manufacturer.

B. instruments are delicate precision devices and calibrited used to measuring electrical .All instruments should be continuously checked for correct by the manufacturer or by some shop autherized by manufacturer.

C. Electrical measuring instruments are delicate precision devices and calibrited.All instruments should be periodically checked for accuracy by the manufacturer or by some shop approved by manufacturer.

A. Light L4 illuminates within 5 seconds.

B. Light L4 comes on after 5 seconds.

C. Light L4 comes on 5 seconds before.

A. The data of the revision shall be shown on each printed page.

B. The date of the revision shall be shown on each revised page.

C. The time of the reserve shall be shown on each revised page.

A. 检验/检查部分应提供必要的信息和程序，以获取接近和检验或检查系统、部件或区域的方法。

B. 在检验/检查部分，应提供接近、检验或检查一个系统、一个组件或一个区域所必需的信息和程序。

C. 在检验/检查部分获得必要的信息，以便接近、检验或检查系统、单元或区域。

A. 如果使用折页，折叠时页码必须可见。

B. 如果扉页被折叠，页码必须可以看见。

C. 当页面被折起，折叠页上可能会看到使用的编号。

A. Corrosion inhibitor is necessary from time to time to ensure continued protection.

B. Corrosion inhibitor is necessary frequently so that protection remains in effective.

C. Corrosion protection is necessary but is ineffective for cost reasons.

A. 表1中列出的研磨剂是备选的，你可以选择使用。

B. 表1给出了可以使用的替代粘合剂。

C. 你只能使用表1中列出的等效粘合剂。

A. 只有制造商和运营商做好各自工作，才能使其余整个飞机机队全部适航。

B. 只有制造商和运营商共同努力，才能保持整个飞机机队持续适航。

C. 只要制造商和运营商共同完成工作，就能保留完整飞机机队的持续适航性。

A. The following information on maneuvers appropriate to the Airplane Category shall be given: (a) A Statement of Authorized Maneuvers and Appropriate Entry Speeds (b) A Statement of Unauthorized Maneuvers (c) A Statement that the airplane is Approved for Spins, Unapproved for Spins, or is characteristically incapable of spinning.

B. The following information should be provided to the maneuver flight as appropriate: (a) A Statement of Entry Speed for Authorized Maneuvers (b) A Statement of Unauthorized Maneuvers (c) A Statement that aircraft is Unapproved or not suitable for Spinning.

C. The following appropriate information should be provided to the aircraft maneuvers: (a) A Statement of Appropriate Entry Speed for maneuvers flight (b) A Statement of Unauthorized maneuvers (c) A Statement that aircraft has been unapproved for Spins, or is characteristically incapable of spinning.

A. In a complicated system, troubleshooting is made up of four chapters.

B. Troubleshooting in a complex system consists of four sections.

C. Four processes are combined to troubleshoot the complicated system.