469.The schematic diagram should tend to deal with an overall system
rather than with subsystems, e.g., the air conditioning system rather
than a compressor or blower within the air conditioning system.

A. 　ADD

B. 　USE

C. 　APPLY

A. 　WORKS

B. 　OPERATES

C. 　MAKES

A. 　Those units means that they can prevent it from eroding.

B. 　Those units provide a method of deicing.

C. 　Those units provide away to prevent the formation of ice.

A. 　The basis for assuring an airplane remains airworthy and safe to operate
is to combine the manufacturer’s requirements with sound inspection and
maintenance practices.

B. 　To ensure airworthiness and safe operation of an airplane, it is
essential to follow the manufacturer’s instructions in the utilization
of airplane, and perform sound inspection and maintenance as well.

C. 　Airworthiness and safe operation are fundamental to aircraft
utilization as required by the manufacturer, so sound inspection and
maintenance practices are carried out.

A. 　主题标题应与本规范中使用的示例相同,或实质上等同于本规范中使用的示
例,除非因飞机型号的设计或运行特点而不适用。

B. 　除了因飞机种类的设计或操作方式不适用的情况,主题标题应与本规范中使
用的示例一致或本质相似。

C. 　除了因飞机类型的设计或运行方式不适用的情况,主题标题应与本规范中使
用的示例一致或近似。

A. 　确保箭头指向燃油流量流动的方向。

B. 　确保标记指向燃油流量流动的方向。

C. 　确保标记指向燃油流量相反的方向。

A. 　在施工中,所有测量单位必须与手册中给出的一致。

B. 　在施工中,所有测量单位应该与手册中给出的一致。

C. 　在施工中,手册中给出的测量单位必须一致。

A. 　定义的措词应尽可能简单,并且必须与手册中定义的术语相符。

B. 　定义的措词必须与手册中使用的定义术语一致,还应该用简单的方式来表达。

C. 　定义的措词应简单并符合手册中的术语。

A. 　LISTEN

B. 　FIND

C. 　LOOK

A. 　Decide which hydraulic system you will pressurize.

B. 　The pressurized hydraulic system is the best.

C. 　Check the hydraulic system that you will pressurize.