A、 “数据传输”或“自动呼叫”系统,如选择呼叫,利用脉冲编码的传输来呈现信息.
B、 “数据传输”或“自动呼叫”系统,如选择呼叫,用脉冲被编码的传输来呈现信息.
C、 在“数据传输”或“自动呼叫”系统中,如选择呼叫,信息的传递是通过用脉冲被编码实现的。
答案：A
A、 “数据传输”或“自动呼叫”系统,如选择呼叫,利用脉冲编码的传输来呈现信息.
B、 “数据传输”或“自动呼叫”系统,如选择呼叫,用脉冲被编码的传输来呈现信息.
C、 在“数据传输”或“自动呼叫”系统中,如选择呼叫,信息的传递是通过用脉冲被编码实现的。
答案：A
A. Assemble the movable car before you lift the gearbox
B. Assemble the movable hoist before you lift the gearbox
C. Assemble the movable handle before you lift the gearbox
A. Left main landing gear alternate control lanyard is lack of lubrication.
B. Left main landing gear alternate control steel wire is not lubricated.
C. Left main landing gear alternate control cable has insufficient lubrication.
A. This is the maximum portion of flammable vapors in air.If the portion is bigger,when an ignition source touched the gas,it would cause the fire to be diffused.
B. This is the minimum volume of flammable vapors.If the volume is lower,when the gas contacted with an ignition source,the fire would not come out.
C. This is the minimum density of flammable vapors in air.If the density was lower,when an ignition source touched the gas,it would not cause the spread of flame.
A. V 是一个用来表示阶段的字母,在单向系统的导线识别码中表示非接地导线。
B. V 是一个用来表示相位的字母,在单相系统的导线识别码中表示非接地导线。
C. V 是一个用来表示相序的字母,在单向系统的导线识别码中表示非接地导线。
A. There are some environmental reasons of the manufacturers or operators such as the location of battery compartments.
B. Some environmental factors are within the control of the manufacturer or the operator such as the location of battery compartments.
C. It is the manufacturer or the operator's environmental factors,such as the location of the battery compartments.
A. 紧握住缸体。
B. 轻轻握住圆柱体。
C. 紧握住作动筒。
A. The air pressure is almost correct.
B. The air pressure is too low.
C. The air pressure is too high.
A. 处理边缘锋利的零件时要戴手套。
B. 处理边缘有凹痕的零件时要戴手套。
C. 当接触边缘有锯齿的零件时要戴手套。
A. Make sure that the flaps are retracted and the aileron trim handwheel is in the zero position.
B. Ensure that the flaps are partially extended and the aileron trim handwheel is centered at zero.
C. Make sure that the flaps are raised and the aileron trim handwheel is set to non-zero position.
A. Do not put too much force on the brush when cleaning the carpet which can be easily damaged.
B. To prevent damage to the carpet when you clean it,do not use too much force on the brush.
C. Using too much force on the brush when cleaning the carpet will cause damage to it.
