A、 由于尺寸、设计或器材的变化，需要对绘图进行修改。当绘图上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。
B、 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意用字母或编号标出这些修改，并在修改栏里对照符号列出这些修改。
C、 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。
答案：B
A、 由于尺寸、设计或器材的变化，需要对绘图进行修改。当绘图上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。
B、 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意用字母或编号标出这些修改，并在修改栏里对照符号列出这些修改。
C、 由于尺寸、设计或材料的变化，需要对图纸进行修改。当图纸上有这样的修改时，要注意对字母和数字进行的修改，并在修改栏的符号上列出这些修改。
答案：B
A. Reserve the inflammable material at least 50 inches away from the work area.
B. Deposit the explosive substance out of 50 feet with the work area.
C. Keep flammable materials at a minimum distance of 50 feet from the work area.
A. 航线维修应理解为在飞行前进行的任何维修，以确保飞机适合预定的飞行。
B. 应理解航线维修是为飞行前对飞机实施的工作，目的是确保飞机安装了预定的装置。
C. 作为对飞行的保障航线维修工作应被理解。航前需要实施检查以确保完成安排的飞行。
A. The bolt will be at the 2 o’clock position when you look at the pump from the rear.
B. The rivet is installed on the 2 o＇clock position of the pump when looking from rear to front.
C. Look at the bolt installed on the pump from rear to front at the 2 o＇clock position.
A. The release of high temperature wing anti-ice air will cause injury to persons.
B. The opening of high pressure wing anti-ice air will cause injury to persons.
C. Injury to persons can be caused by releasing the hot anti-ice liquid.
A. Upon designed and approved, a complete maintenance procedures must be established. This procedure must provide in clear, easy language to people who need it.
B. Upon design and approval, the establishment of complex maintenance procedures is a must. This procedure must provide a clear, precise language to those who need it.
C. Once designed and approved, the establishment of thorough maintenance procedures is a must. This procedure must be available in clear, concise language to those who need it.
A. Because of the risk of contamination, you must do this task in a very clean environment.
B. To prevent environmental pollution, this task must be done in a very clean area.
C. In order to prevent contamination, the task you must do is to find a very clean environment.
A. 预估所需要的数量。
B. 估计必须的清洗液数量。
C. 估计所需要的消耗量。
A. 用不同颜色的衬套来识别线路。
B. 识别不同颜色的金属丝套筒。
C. 用套筒来辨别电线的颜色。
A. If the clearance dimension is not accurate, adjust the clearance dimension between the extend proximity sensor [44A] and the target [45]. Some of the ducts in the air distribution system are wrapped with insulation material.
B. Adjust the clearance dimension between the extend proximity sensor [44A] and the target [45] in case of the clearance dimension is out of tolerance. Some of the ducts in the air distribution system are wrapped with non-conductive material .
C. Adjust the clearance dimension between the extend proximity sensor [44A] and the target [45] until the clearance dimension is out of range. Some of the ducts in the air distribution system are wrapped with compound material.
A. The airworthiness problem needs to be resolved by the way any other airplane does in the operator＇s fleet has equal or more damaging corrosion, and it has to be done before the regular check of that zone.
B. The airworthiness problem needs immediate action ahead of the next planning inspection of that zone, because it would probably occur on another plane in the operator＇s fleet, causing equivalent or more serious corrosion.
C. Due to any other airplane in the operator＇s fleet could have the comparable or more vital corrosion, the airworthiness problem should be investigated immediately before the next periodic inspection of that zone.
