425.Do these two steps at the same time.

A. Do not alleviate pressure to the aft flange.

B. Do not apply pressure to the aft flange.

C. Do not apply pressure to the aft screw bolt.

A. 拧松螺钉,但同时不要给它们打力矩。

B. 拧紧螺栓,但此时不要扭矩它们。

C. 拧紧螺母,但此时不要给它们打力矩。

A. Before restarting the engine,make sure to clear the ground from any fuel spills.

B. Remove all spilled fuel from the ground before making the first attempt to start the engine.

C. Ensure that no fuel on the ground is eliminated before proceeding with engine startup.

A. 当需要了解膜片时,使用箭头指示方向。

B. 必要时应使用箭头表示流向来理解原理图。

C. 利用箭头指示的方向来理解线路施工图。

A. 不需要使用支架或梯子就能实现在地面做检查。

B. 无需使用支架或梯子就能完成地面检查。

C. 检查是在地面上完成的,不需要使用架子或梯子。

A. Apply special materials in all the holes,specially in the area which can have condensation.

B. Paint special materials in all the holes,especially in the freezing area.

C. Fill special materials in all the holes,particularly for the frost area.

A. 描述每条设备列表条目,并显示其重量和相对于飞机基准面的位置。

B. 描述每个设备清单项,并显示其有关基准面的重量和飞机位置。

C. 逐一描述清单中的每项设备,并显示其重量和相对于飞机基准点的位置。

A. Preset the control to get maximum thrust.

B. Set the control to get maximum thrust.

C. Reset the control to get the maximum force .

A. The Unusual Procedures Check List should be in concrete,abbreviated form.

B. The Emergency Procedures Check List should be in constant,abbreviated form.

C. The Abnormal Procedures Check List should be in concise,abbreviated form.

A. Make a little oil to the threads of the two bolts.

B. Apply a small quantity of oil to the threads of the two bolts.

C. Apply a small quantity of oil to the threads of the two nuts.