1291. This can cause a deterioration of the mechanical properties of the assembly

A. 甲醇.....

B. 乙醇.....

C. 丙醇......

A. This regulation Meets applicable government regulatory requirements.

B. This specification Meets applicable government regulatory requirements.

C. This regulation Meets applicable government airworthy requirements.

A. Oil the component surfaces;

B. Sprinkle the oil to the component surfaces;

C. Apply oil to the component surfaces;

A. These instructions are required for towing aircraft in normal or abnormal conditions, such as from soft ground,wet or icy surfaces and in the case of engine is removing or aircraft is damaging.

B. These instructions are necessary for towing the aircraft under normal or abnormal conditions, such as from a wet or icy surface on a soft ground and when the engine is removed or the aircraft is damaged.

C. These instructions are necessary to tow or push the aircraft in normal or abnormal conditions such as towing from soft ground and slippery or icy surfaces,with engines removed, or aircraft damaged.

A. 设备对没有列出的飞机的重量或平衡没有显著影响。

B. 对飞机重量或平衡没有显著影响的设备不需要列出。

C. 没有明显影响的设备的重量或平衡在没有列出的飞机上。

A. 在选择术语或措辞时,始终使用一个系统。

B. 在选择术语或措辞时,风格要始终一致。

C. 在选择术语或措辞时,风格要一致。

A. English is not often the private language of the reader s of technical books

B. English is not often the required language of the readers of technical pamphlet.

C. English is not often the mother language of the readers of technical files.

A. Altitude indicator indicates altitude to horizon

B. Attitude indicator indicates attitude to horizon

C. Altitude indicator indicates altitude to level

A. 水和甲醇的混合物增加了发动机的功率。

B. 水和乙醇的混合物增加了发动机的功率。

C. 水的混合物和丙醇增加了发动机的功率

A. 包括一项飞机系统的深度检查在内,初始失速测试和其他动态操纵已经完成。

B. 包括一项飞机系统的广泛检查在内,初始失速测试和其他飞控操纵已经完成。

C. 包括一项飞机系统的广泛检查在内,初始失速测试和其他动态操纵已经完成。