660. CAREFULLY LIFT THE MAGNETIC LEVEL INDICATOR UNTIL YOU ( ) THE MAGNETS

A. 系统中扩大声音调制电磁波来传送和/或接收空对空或空对地装置的信息的系统部分。

B. 系统中利用声音调制电磁波来传送和/或接收空对空或空对地装置的信息的系统部分。

C. 系统中利用音调制电磁光束来传送和/或接收空对空或空对地装置的信息的系统部分。

A. Oil the steel surfaces.

B. Sprinkle the oil to the steel surface.

C. Apply oil to the steel surfaces.

A. The lower seal appears as the lower bearing is pulled down.

B. You can see the lower seal before pulling the lower bearing down.

C. Only after you pull the lower seal down can you see the lower bearing.

A. 句子末尾的主要部分添加一个引号。

B. 在句子主体的末尾部分添加一个冒号。

C. 在主要句子的末尾处添加一个句号。

A. You can see the oil level on the sight gauge.

B. You can see the oil quantity on the sight gauge.

C. You can see the oil level on the sight indicator.

A. Make sure that the cabin differential pressure is zero before you unlock the door.

B. Be sure that the variance of the cabin pressure is zero before you open the door.

C. Make certain that the difference of the compartment compression is zero before you open the door.

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. 基本上,它是以对飞行员最有用的形式来呈现已被证明的概念的行业标准化指南。

B. 基本上,它是一个指导行业标准化的证明概念,以一种最有用的形式提供给飞行员。

C. 基本上,它是一个证明行业标准化概念的指南,并提供一种对飞行员最有利的形式。

A. 打开舱门直到看到地板。

B. 打开舱门直到碰触到地板。

C. 打开舱门直到碰触到天花板。

A. 向后倾斜安装这个部件

B. 把这个部件安装在前面

C. 晃动这个部件