A mechanic opening a door without obeying the specified safety precautions can easily cause injury to persons standing near the door.

A. Light surface blooming, which can occur on items in storage, is not detrimental to the component.

B. Surface blooming, often found on corroded items, has little adverse effect on the component when it is mild.

C. Items in storage tend to have surface blooming which is beneficial to the component.

A. 在测试中，要灵活调整工作步骤的顺序。

B. 在测试中不要改变工作步骤的顺序。

C. 改变工作步骤的顺序在测试时是必要的。

A. Get the approval of the design authority,whatever it is necessary to change the repair scheme.

B. Change the repair scheme, until getting the approval of the design authority.

C. If it is necessary to change the repair scheme, get the approval of the design authority.

A. 应使用比例尺图对飞机的总体布局进行说明，该比例尺图由平面图、侧视图和正面视图组成，并在单页上以垂直顺序展示。

B. 应使用气动布局图对飞机总体安排进行说明，说明内容包括计划、侧面图和正面图，并以垂直顺序在单页上列出。

C. 应在单页上以横向顺序的呈现方式对飞机总体布局和示意图进行说明，包括平面图、侧视图和正面视图。

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. RESET测试电门用于减少故障历史。当VERFIY(通过)和绿色GO灯亮时, 按下RESET(复位)电门。

B. RESET测试电门用于转移故障记录。当VERFIY(验证)和绿色GO灯打开时, 按下RESET(复位)电门。

C. RESET测试电门用于消除故障记录。当VERFIY(确认)和绿色GO灯亮时, 按下RESET(复位)电门。

A. 适航指令是从事飞机进行维修时必须使用的程序。

B. 在航空器上执行适航指令时，必须阅读本程序。

C. 适航指令必须是对飞机维修有用的程序。

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. Ensure the repair plug fits.

B. Ensure the fix plug fits.

C. Ensure the repair rivets fits.

A. All range distances shall be expressed in nautical miles.

B. All range dimensions shall be defined in kilometers.

C. Nautical miles should not express all range distances.