289、Make sure that the wire is in the position to cause the parts to lock. 确保电线处于使部件锁住的位置

A. 　 Fuel the aircraft.

B. 　 Refuel the aircraft

C. 　 Defuel the aircraft.

A. 　 The color of the bottom mark on the plate is amber.

B. 　 You can see the red bottom mark on the board.

C. 　There is no color of the bottom mark on the board.

A. 　这种物质在高浓度时是有毒的。

B. 　在高度浓缩后,这种材料会有毒。

C. 　这种材料在高温下会易燃。

A. 　笔记本电脑有以下主要部件。

B. 　笔记本电脑有以下初级部件。

C. 　笔记本电脑有以下仿制部件。

A. 　每个乘客的座位上的客舱娱乐系统可以传输音频和图像,也可以被连接到乘客系统的喇叭上。

B. 　视频娱乐的图像部分被传送到图像娱乐系统所选频道上的每个乘客的座位上,也可以被连接到乘客系统的
扬声器上

C. 　视频娱乐的音频部分被传送到音频娱乐系统中所选频道上的每个乘客的座位上,也可以被连接到乘客系统
的扬声器上。

A. 　 Removing it with special material is necessary if you find corrosion.

B. 　 If you find corrosion, remove it with the specified material

C. 　 lf corrosion is found, change the material to remove it.

A. 　 Landing gear position has no effect on stall speeds.

B. 　 The position of the landing gear doesn't influence the surging speed.

C. 　 The idle speed is not effected by the landing gear position.

A. 　 The rudder is a replaceable airfoil which is mounted to the vertical fin and is used for yaw control.

B. 　 The rudder is a removable wing which is fixed to the vertical stabilizer and is used for pitch control.

C. 　 The rudder is a removable airfoil which is attached to the vertical stabilizer and is used for yaw control.

A. 　 There are remarks directly below the maintenance/overhaul section, extended from left to the right side

B. 　 You can find the comments which extends from left to right margins in the repair/modification section
below.

C. 　 The comments extended from right to left margins are located in the repair/alternation section.

A. 　 Sudden changes in temperature can adjust the internal logic.

B. 　 The internal logic adjusts to sudden changes in temperature.

C. 　 The internal logic can be adjusted by sudden changes in temperature