A、 The self-locking function decays after several removal and installation.
B、 Repeated removal and installation causes the self-locking nut to lose its locking feature.
C、 Avoid repeated removal and installation of the self-locking nut to protect its locking feature.
答案：B
A、 The self-locking function decays after several removal and installation.
B、 Repeated removal and installation causes the self-locking nut to lose its locking feature.
C、 Avoid repeated removal and installation of the self-locking nut to protect its locking feature.
答案：B
A. Having reached the airport, he found the airplane would take off.
B. Having reached the airport, he found the airplane was taking off.
C. Having reached the airport, he found that the airplane had taken off.
A. The antenna select circuit chooses the diplexer and antenna that supplies the strongest receiver signal. The transmission of the reply signal goes through the selected diplexer and antenna .
B. The antenna select circuit chooses the router and antenna that supplies the strongest receiver signal. The transmission of the reply signal goes through the selected router and antenna .
C. The antenna select circuit chooses the router and antenna that supplies the strongest transmitter signal. The transmission of the reply signal goes through the selected router and antenna
A. Make sure that the probe went through more than 500 degrees C.
B. Make sure that the temperature of the probe increased to more than 500 degrees C.
C. Make sure that the temperature of the probe increased to more than 500 degrees F.
A. 电磁阀应如此标明,并应包括表示该阀是弹簧加载到打开位置还是关闭位置的符号。
B. 电磁阀应如此标明,并应包括表示该阀是弹簧加载到打开位置或者关闭位置的符号。
C. 电磁阀应如此标明,但不包括表示该阀是弹簧加载到打开位置还是关闭位置的符号。
A. 浸泡元件四个小时。
B. 冲洗元件四个小时。
C. 打磨元件四个小时。
A. The location where a red mark is on the pin needs to be lubricated.
B. You should identify the red mark on the lubricant point.
C. The lubrication point shows that you can find marks on the pin.
A. 每条指令用一句话写出,除非有两个或更多的动作。
B. 每句话仅写一条指令,除非有两个或更多的动作同时发生。
C. 每条指令除非有两个或更多的动作同时发生,否则仅用一句话写出。
A. 系统中用于更新、整合、控制和指示交流电源的部分。
B. 系统中用于产生、调节、控制和指示交流电源的部分。
C. 系统中用于产生、调节、遥控和告诫交流电源的部分。
A. Accumulator is often used in hydraulic system.
B. Accumulator pre-pressurize the noncompressible gas.
C. Accumulator can be used in fuel system.
A. 提供的翻修记录
B. 建议的翻修记录
C. 建议的修订记录
