A、 Mach digit is the percent of true airspeed to the speed of sound.
B、 Mach number is the ratio of true airspeed to the speed of sound.
C、 Mach number is the proportion of real airspeed to the speed of light.
答案：B
A、 Mach digit is the percent of true airspeed to the speed of sound.
B、 Mach number is the ratio of true airspeed to the speed of sound.
C、 Mach number is the proportion of real airspeed to the speed of light.
答案：B
A. 对于飞机维修中的行为,法规中规定的要求很重要。
B. 了解法规的要求对于飞机维修来说非常重要。
C. 在飞机维修活动中,遵守法规是非常重要的。
A. By way of the control unit,enter the opening in the side of the tank.
B. Get access to the control unit through the opening in the side of the tank.
C. Get access to the control unit by opening one side of the tank.
A. Inform the administration of the problem.
B. Announce the problem to the operator.
C. Tell the manufacturer about the problem.
A. 数据应以标准日(ISA)的时间、燃料和从海平面爬升的距离与海拔高度的关系来表示。
B. 数据应能够呈现标准日(ISA)的时间、燃料和从海平面爬升的距离与海拔高度的关系。
C. 数据应显示国际标准大气(ISA)条件下飞机从海平面爬升到某高度所需的时间、燃油消耗量和水平距离。
A. “检查合规性”规定了关于“何时”需要检查的说明,是否为重复性检查。同时说明是否需要根据初步检查结果进行额外的重复检查。"
B. “检查合规性”给出了关于“何时”需要检查的说明,是否属于重复性检查。同时说明是否需要根据初始检查结果进行额外的重复检查。"
C. “检查合规性”用于描述某检查需要实施的时间以及是否属于重复性检查,并说明是否需要基于初始检查结果进行额外的重复检查。
D. A.“检查合规性”规定了关于“何时”需要检查的说明,是否为重复性检查。同时说明是否需要根据初步检查结果进行额外的重复检查。"B.“检查合规性”给出了关于“何时”需要检查的说明,是否属于重复性检查。同时说明是否需要根据初始检查结果进行额外的重复检查。
E. A.“检查合规性”规定了关于“何时”需要检查的说明,是否为重复性检查。同时说明是否需要根据初步检查结果进行额外的重复检查。"B.“检查合规性”给出了关于“何时”需要检查的说明,是否属于重复性检查。同时说明是否需要根据初始检查结果进行额外的重复检查。"
F. C.“检查合规性”用于描述某检查需要实施的时间以及是否属于重复性检查,并说明是否需
G. C.“检查合规性”用于描述某检查需要实施的时间以及是否属于重复性检查,并说明是否需要基于初始检查结果进行额外的重复检查。
A. If necessary,prepare a gasket.
B. If necessary,add a pin.
C. Add a washer if necessary.
A. Use backthrust to change the direction of the exhaust to achieve contrary thrust.
B. Thrust reverser is used to change the direction of the exhaust gases for reverse thrust.
C. To change the direction of the exhaust nozzle,the thrust reverser is used to obtain the opposite thrust.
A. The Preface has been omitted in the sample CAP in Section Ill and the necessary information has been included in the Objectives.
B. The Objectives of third CAP sample is omitted and the necessary information is included in the Preface description.
C. The necessary information has been included in the sample description,so the CAP III omitted the Objectives in the Preface.
A. The format of the cruise capacity display is determined by the aircraft vendor.
B. The form of the climb performance display is decided by the aircraft manufacturer.
C. The format of the cruise performance presentation is at the discretion of the airplane manufacturer.
A. 用一块棉布把窗玻璃擦亮。
B. 用一块软布把窗玻璃擦干净。
C. 用一块软布把窗玻璃擦亮。
