If the damage is only to the middle treads, the tire is serviceable.

A. 这个能使推力管理更好，并且能够减少燃油消耗。

B. 这个能使推力管理更好，并且能够减少燃油吸收。

C. 这个能使更好的推力被应用，并且能够减少燃油消耗。

A. You can adjust the volume control.

B. You can adjust the value control.

C. You can override the voice control.

A. Most material of the radar scope is fiberglass.

B. Most of the material in the radome is fiberglass.

C. Most of the material in the radar cap is fiberglass.

A. Make sure that the mark on the bolt is aligned with the mark on the handle.

B. Make sure that the mark on the bolt is level with the mark on the handle.

C. Make sure that the mark on the bolt is parallel to the mark on the handle.

A. 不要安装精度超过0.02 mm的垫片。

B. 不要安装厚度超过0.02 mm的填隙片。

C. 不要安装高度超过0.02 mm的衬垫。

A. Point out that the FAA should be contacted prior to any alterations on airplane to ensure that the airworthiness of the airplane is not violated.

B. Point out that the FAA should be informed after any modifications on airplane to ensure that the airworthiness of the airplane is not effected .

C. Point out that any modifications on airplane may be informed to FAA to confirm the airworthiness of the airplane.

A. Keep out of the engine before it starts.

B. Keep away from the intake area before the engine starts.

C. Go away from the exhaust area before the engine starts.

A. The temperature value must be more than 800 kPa.

B. The compression value must be more than 800 kPa.

C. The pressure value must be more than 800 kPa.

A. 将导轨嵌放在轴上。

B. 将套筒放在支杆上。

C. 把吊环钩在钩环上。

A. 因为轴的损坏，导致泵不运转。

B. 由于泵的设计问题，导致其停止运转。

C. 泵运转失常的原因在于叶轮的损坏。