A、 On pressurized aircraft, the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling ventilation.
B、 Distribution of cabin air on pressurized aircraft is managed with a system of air ducts leading from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling vents.
C、 On pressurized aircraft cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling flap.
答案：B
A、 On pressurized aircraft, the cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling ventilation.
B、 Distribution of cabin air on pressurized aircraft is managed with a system of air ducts leading from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling vents.
C、 On pressurized aircraft cabin air is distributed with a system of air ducts leaded from the pressurization source into and throughout the cabin. Typically, air is ducted to and released from ceiling flap.
答案：B
A. The cover contains manufacturer＇s information and will be subject to its discretion.
B. The cover is determined by the manufacturer and the information should be comprehensive.
C. The information to be included on the cover will be left to the manufacturer＇s discretion.
A. The damper prevents abnormal movement of the control.
B. The control is protected from unusual movements by the damper.
C. The damper prevents sudden movement of the control.
A. 短距和软地着陆时的正常操作程序
B. 正常操作程序下的短场和软场着陆
C. 短地和软地着陆的正常通告程序
A. The forward movement of the control lever must be slow and continuous.
B. The control lever must be kept moving forward slowly and abruptly.
C. You must continuously slow down the forward movement of the control lever .
A. 在搅拌均匀后，一小时内不可使用该溶液。
B. 如果摇晃溶液，请等待一小时后再打开。
C. 如果晃动了溶液，一小时内请不要使用。
A. If the airframe manufacturer modifies the component manufacturer＇s text or description by any means, he shall use his own headmaster.
B. If the airframe manufacturer changes the component manufacturer＇s text or illustration in any way, he shall apply his own masthead.
C. If the airframe manufacturer changes the component manufacturer＇s text or illustration in one way, he shall modify his own masthead.
A. 丁酮是重度除油剂，适合金属准备和编织盖板喷漆前去油。
B. 丙酮是重度油污去除剂，适合金属表面预处理和织物蒙皮喷漆前去油。
C. 异丙醇是重度油污去除剂，适合金属生产处理和织物表面喷漆前除油。
A. Do the weighing procedure in this sequence.
B. In this order to perform the swapping procedure.
C. In this sequence to do the analysis procedure.
A. 旋转电位器，直到灯变暗。
B. 转动调节器，直到光线变暗。
C. 转动控制器，直到灯变亮。
A. This procedure gives the inspection sources of the sixth stage low pressure bleed air blade.
B. This procedure shows the inspection instruction of the sixth stage low pressure bleed air blade.
C. This procedure has the inspection progress of the sixth stage low pressure bleed air blade.
