2204. 增加压力,直到再次开始流动。

A. In an emergency, you can use fuel F-43 as an alternative to fuels F-34 and F-40.

B. In an emergency, you can replace fuels F-43 with fuels F-34 and F-40.

C. In an emergency, fuel F-43 can be used as an alternate to fuels F-34 and F-40.

A. Steel is light and strong, so that it is widely used in aircraft manufacturing industry.

B. Aluminum alloy is light and strong, therefore it is widely used in aircraft manufacturing industry.

C. Aluminum alloy is light and strong, so that it is seldom used in aircraft manufacturing industry.

A. Pollutant growth usually occurs at the fuel/water interface in the fuel tanks.

B. Microbial growth usually occurs at the fuel/water separatrix in the fuel box.

C. Microbial growth usually occurs at the fuel/water interface in the fuel tanks.

A. Don＇t handle the APU line, when you get close to the back fuselage

B. When you enter into the front fuselage through the access door, don＇t touch the APU line

C. Don＇t hold the APU line when you ap roach the aft fuselage through the access panel

A. Some chemicals can not be used if they are well kept.

B. Some chemicals must be well kept so that they can be used.

C. Some chemicals must be well kept as long as they can ben used.

A. Turn the control to the full close position

B. Turn the control to the fully closed position

C. Turn the control to the fully close position

A. Check wash basin drains, water tap and its lines for leakage.

B. Inspect the washing sink, faucet and its pipe for leakage.

C. Examine the washing hand drain port,tap and the line for crack.

A. It is required to get a sample of the fabric without finish for the fabric punch tester.

B. Fabric punch tester is a device used to determine the strength of the fabric covering on an aircraft,which can get very accurate result.

C. Fabric punch tester is used to determine the relative strength of aircraft fabric.

A. 应使用能产生黑白图像的打印格式来进行复制。

B. 应使用能产生黑白图像的打印形式来进行印刷。

C. 应使用能产生黑白图像的打印形式来进行复制。

A. FULFILED

B. FINISHED

C. COMPLETED