Though techniques such as shading, crosshatching, screening or similar means are recommended, the use of color is permissible.

A. 陀螺的突然运转会引起水平安定面不必要的移动。

B. 陀螺的意外操作会引起垂直安定面不必要的移动。

C. 水平安定面的突然移动会引起陀螺的意外操作。

A. 拆下附着在法兰到盖子上的四个螺钉。

B. 拆下四个螺钉，将法兰附着到盖子上。

C. 拆下将法兰固定到盖上的四个螺钉。

A. 描述飞机刹车系统时，应阐述如何最大程度地发挥刹停作用的同时延长刹车的最大寿命。

B. 描述飞机刹车系统时，应描述如何使用最大刹车以及最大程度地延长刹车的使用寿命。

C. 描述飞机刹车系统时，应阐述如何获得最大制动并制动器的最大寿命。

A. Necessary information by manufacturer should be provided in this chapter to maintain, overhaul or major repair the aircraft so as to properly level it during the life of the aircraft.

B. In order to properly level the aircraft when performing repair, overhaul or major repairs during the life of the aircraft, this chapter should provide all considered information by manufacturer.

C. This chapter shall provide that information considered necessary by the manufacturer to properly level the aircraft for any of the various maintenance, overhaul or major repairs which might become necessary during the life of the aircraft.

A. 永久装订的手册页无需注明日期。

B. 临时装订的手册页无需注明日期。

C. 临时装订的手册页无需注释。

A. Substitutes with different quality can be used.

B. You can not use substitutes with same quantity.

C. Equivalent substitutes are permitted to use.

A. 如果安装了某一个设备，那么要说明安装它的重要性。

B. 如果安装了其中一个设备，则说明它是否是必需的设备。

C. 如果安装了两个设备，需要说明其必要性。

A. If the failure takes place occasionally, the system need to be tested.

B. If there is a failure that seldom take place, do a system test.

C. If the failure occurs frequently, do a system test.

A. 将收发机放到主体组件上。

B. 将发射器放在主体组件上。

C. 将传感器放在主体组件上。

A. 在接下来的测试中，当穿越供油端口的燃油流量大于5毫升每分钟时，将得到破裂压力。

B. 在分项测试中，当穿越供油端口的燃油流量大于5毫升每分钟时，将得到开启压力。

C. 在接下来的测试中，当交输端口的燃油流量大于5毫升每分钟时，将得到开启压力。