643.文件必须易于修改。

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. 当飞机离地时,最小的千斤顶的高度必须小于接头和地面之间的距离。

B. 给飞机安装轮子时,千斤顶的最低闭合高度不能超过顶块和地面之间的距离。

C. 在顶起飞机之前,最小的顶升高度必须小于顶块和地面之间的距离。

A. Check all parts with clear defects in accordance with standard industry practices.

B. Check all parts for visible defects in accordance with standard industry practices.

C. Check all parts for serious defects in accordance with standard industry practices.

A. Make sure that the flaps and the slats are retracted.

B. Make sure that the slats and the ailerons are retracted.

C. Make sure that the flaps and the elevators are extented.

A. Alternates for equipment may be listed under the same item number.For installations made up of a number of units which my be located at various places in the airplane,each unit should be listed separately.

B. Alternative equipment can be listed under the same item number.Multiple identical components installed in different locations of the aircraft should be listed uniformly.

C. Different equipment may be substituted for each other and listed under the same item number.Multiple identical units installed on different aircraft should be listed individually.

A. After pressing the LSK next to EXIT,the BITE will take you out of BITE test and the airplane will return to its normal condition.

B. The BITE will continue the BITE test and the airplane will go back to its usual condition when you push the LSK next to EXIT.

C. The BITE will proceed the BITE test and the airplane will go back to its normal configuration after releasing the LSK that is adjacent to EXIT.

A. Do not reach this speed with a given flap setting.

B. Do not exceed this speed with a give flap setting.

C. Do not exceed this speed with a given flap setting.

A. 描述飞机燃油系统时,应解释燃油测量系统并阐述检测和校对的需要。

B. 描述飞机燃油系统时,应解释燃油计量系统并阐述检查和修正的需要。

C. 描述飞机燃油系统时,应说明燃油测量系统并阐述监控和校正的必要性。

A. Transport the part to the overhaul shop.

B. Transport the part to the maintenance shop.

C. Remove the part to the overhaul shop.

A. The aircrft is taxiing to China on the runway.

B. The aircrft is running to China on the ramp.

C. A Chinese aircrft is taxiing on the runway.