Corrosion can have a lot of causes.

A. Make sure that the position of the clamp agrees with the position that you recorded during the removal procedure.

B. Confirm that the recorded condition during the removal procedure agrees with the condition of the clamp.

C. Ensure that the clamp is correctly oriented based on the suggested position documented during the removal procedure.

A. Finish stage 1 to 4 to ensure that no axial force is derived from the rod.

B. Do steps 1 thru 4 to make sure that no axial load is applied on the rod.

C. Procedures 1 to 4 are designed to check if the rod exerts axial force.

A. If there are metal fragments in the liquid sample, replace the pump.

B. If there are only small metal particles in the solid sample, replace the pump.

C. If there are metal particles in the sample solids, replace the pump.

A. 不要超过这个速度或马赫数，但当空气平稳时仅仅小心操作就足够了。

B. 除非在平稳的空气中谨慎操作，否则不得超过此速度或马赫数。

C. 不要超过这个马赫数的速度，除非接受警戒只在平稳的空气中操作。

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.

A. 如果警告灯是亮的，将无法在门关闭时正确调节微电门。

B. 在门关闭时如果警告灯亮起，说明微电门调节不正确。

C. 在门关闭时如果标志灯在位，微电门将无法正常调节。

A. 如果副翼行程未满，请再次调整桅杆。

B. 如果襟翼运转缓慢，再次调整传动杆。

C. 如果襟翼达不到全行程，再次调节连杆。

A. Put the end of the rod that has a screw in the fitting.

B. Put the end of the rod that has a thread in the adapter.

C. Put the end of the rod that has a thread in the fitting.

A. 确保你移除了所有的工具和设备。

B. 确保你移动了所有的工具和器材。

C. 确保你报废了所有的工装。

A. 如果飞机有一个内置的辅助动力装置，描述该装置并解释它是如何配合电气系统工作的.

B. 如果飞机有一个附加的辅助电源组件，描述该装置并解释它是如何对接电气系统的.

C. 如果飞机有一个内置的辅助动力装置，描述该装置并解释它是如何装配到电气系统的.