A、 An alphanumeric identifier is an assembly of characters and numbers. It can recognize something.
B、 An symbolic-numeric identifier is an assembly of symbols and numbers. It can identifies something.
C、 An alphanumeric identifier is a combination of letters and numbers that identifies something.
答案：C
A、 An alphanumeric identifier is an assembly of characters and numbers. It can recognize something.
B、 An symbolic-numeric identifier is an assembly of symbols and numbers. It can identifies something.
C、 An alphanumeric identifier is a combination of letters and numbers that identifies something.
答案：C
A. 对泵的控制电门进行保护可以防止误操作。
B. 泵的控制电门可以对误操作进行保护。
C. 泵的控制电门上的保护装置可以防止意外操作。
A. AD describes corrective action, e.g. inspection, repair or maintenance, which may be listed by AD or included in another document, e.g. manufacturer＇s Service Bulletin that acts as reference in the AD.
B. The corrective action prescribed by the AD, such as an inspection, repair, or modification, may be detailed in the AD itself or may be contained in another document, such as manufacturer＇s Service Bulletin, which is referenced in the AD.
C. AD details the requirements for inspection, repair or modification described in corrective action, or it may be contained in another document, such as Service Bulletin referenced in AD.
A. 不要在热的表面上使用这些清洁剂。
B. 不要在热的表面上使用密封剂。
C. 不要在热的漆面上使用除味剂。
A. 原理图应包括被认为是输出源头的发电机、油箱和储液箱。
B. 原理图由被认为是输出源头的发电机、油箱和蓄压器组成。
C. 原理图应排除被认为是输出源头点的发动机、油罐和油箱。
A. 用刀片画一条线。
B. 在刀刃上画一行。
C. 在叶片上画一条线。
A. The gage must be lubricated before doing a check.
B. Do a check with an adjusted gage.
C. The gage is used to do calibration during a check.
A. 评估一个事故造成的损伤。
B. 通过事件来检查一个损伤。
C. 事故后检查损伤。
A. The air pressure is almost correct.
B. The air pressure is too low.
C. The air pressure is too high.
A. 大量的高压燃油供油用于作动筒控制和到燃烧室的计量燃油，其余部分通过溢流活门返回给低压系统。
B. 除作动器控制和到燃烧室的计量燃油外，过量的高压燃油供油通过溢流阀返回给低压系统。
C. 超量的高压燃油供油用于作动筒控制和到燃烧室的计量燃油，之后通过减压阀返回给低压系统。
A. Clamps should be spaced at intervals not exceeding 24 inches. Clamps on wire bundles should be selected so that they have a snug fit without pinching wires.
B. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without pinching wires.
C. Pins should be spaced at intervals not exceeding 24 inches. Pins on harness should be selected so that they have a snug fit without scratching wires.
