Replace the insulation blankets that show chafing.

A. Make sure that all the emergency exits are clear of unwanted objects.

B. Make sure that all the exits are clear of foreign objects.

C. Make sure that all the emergency entrance are freee of unwanted objects.

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. Supply electrical power to both solenoids.

B. Apply hydraulic power to either of the solenoids.

C. Apply electrical power to one of the two solenoids.

A. 补充空气是系统的一部分，它改变和控制流入排气系统的补充空气流量。

B. 辅助空气是系统变化的一部分，它可以控制补充空气的排气量。

C. 补充空气是系统中变化和控制的部分系统，补充空气流向排气系统。

A. Give precise instructions for using emergency exits.

B. Give special directions for using urgent exits.

C. Give accurate data for using urgent exits.

A. During the retraction test, keep a close watch on the monitor.

B. Continuously observe the indications after the retraction test.

C. Monitor the indications during the retraction test.

A. Sample the fluid to contaminate microbiology.

B. Do a fuel sampling for microbiological contamination.

C. Obtain a demo of oil to determine the microbial pollution.

A. 运营商应该用开放的通信设备告知厂家新出现的情况，厂家也要回应以必要的帮助。

B. 双方应采取开放式沟通方式，一旦出现新情况,运营商应告知厂家，而厂家要给予运营商以可靠的帮助。

C. 一旦出现新情况，双方应该进行公开的沟通，运营商告知发生的新情况， 厂家提供帮助。

A. If there is hum from the loudspeaker, don＇t adjust the potentiometer.

B. Adjust the potentiometer unless hear a hum from the loudspeaker .

C. Adjust the potentiometer until the loudspeaker no longer hums.

A. 根据当地的正确程序使用或丢弃封严胶。

B. 遵守当地规定，正确使用或丢弃溶剂。

C. 遵守局方规定，正确使用或丢弃封严胶。